WorkflowPrivate Markets

Side Letter Management

Side letter management built to close every MFN election inside 90 days of final close, with every promise owned and dated

MFN elections closed inside 90 days of final close, with every promise owned and dated.

See one case, screen by screen ↓
demo37of 171 termsthe sample investor may elect, each cited to its clause — 6 more excluded and shown with the reason
demo43of 43eligibility calls re-derived by a second agent on a different model, all in agreement
demo268obligationsongoing for the sample fund, each with an owner and a due date — 4,118 across 40 funds
target90daysor less from final close to every MFN election closed
In short

What is Side Letter Management?

Side Letter Management is side letter management software for private fund managers: it tracks every side letter obligation and runs MFN elections for fund legal and IR teams. Seven agents read every letter in its own language and cite each term to its clause, check each investor's eligibility twice, draft a ballot and an election packet per investor, read the answers and turn every promise into a dated obligation with an owner. IR prepares, fund counsel approves every packet and the CFO co-signs any term that moves money.

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Updated

The problem

Why MFN elections run for months, and side letter promises go stale

Side letter management after a final close is two jobs at once. First the MFN election: every investor with a most-favored-nation right may elect terms other investors negotiated, limited by the size of its commitment, and never terms tied to another investor's legal, tax or regulatory status. Today fund counsel and the IR team re-read every side letter, build the side letter compendium in Word and Excel, work out each investor's eligibility by hand, send forms, chase answers and then re-paper.

Elections that should close within 90 days of final close run 9 to 12 months. Investors over-elect, or elect a term without the conditions attached to it, and counsel spends weeks correcting them. Meanwhile the promises themselves — ILPA reporting templates, excuse notices, SFDR data, notice periods — sit in compendia nobody re-reads, and letters signed in Dutch, German, French or Japanese wait for a lawyer who reads the language. The SEC's FY2026 examination priorities name side letters and the differential treatment of investors.

typical9–12monthsfor MFN elections run by hand
typical90daysfrom final close, when market practice expects every election closed
Where an MFN election's weeks go, from final closeestimated
By hand40 days
With the solution11 days
  • Re-reading every side letter and building the compendium8 → 1 d
  • Aggregating commitments and working out each investor's eligibility6 → 1 d
  • Drafting and checking an election packet per investor6 → 1 d
  • Counsel review, sign-off and sending4 → 1.5 d
  • The election window and chasing answers8 → 4.5 d
  • Correcting over-elections and re-papering8 → 2 d

Estimated split for one fund's MFN election with about 50 electing investors, by hand and with the solution, in weeks.

How it works

How a side letter moves

Seven agents read, check twice, draft and track every letter; IR prepares, counsel approves, the CFO co-signs.

What comes in
Letters in40 funds, 900 letters · any language; repository, register, portal
Agents at work
Intake agentany language, cited
Then
Investor agentaggregates affiliates
MFN agenteligibility by tier
Then
Checker agentindependent model
Packet agentballot and packet
Then
Response agentanswers and conditions
Obligation agentowners, dates, escalation
A person decides
IR, counsel, CFO, complianceprepare, approve, co-sign, own
What comes out
Elections closed in 90 days
Every promise owned and dated
Exam-ready evidence
One case, step by step

One MFN election, from ballot to kept promise

Side letter management here is a conversation with seven agents: fund counsel asks why a term is in or out, the agents answer with the clause, and nothing reaches an investor until a person approves it. Quillfield Capital Partners IV, L.P. held its final close on August 31, 2026 at $6.2 billion from 118 investors. Its 63 side letters carry 412 provisions, and 52 investors hold an MFN right. It is Monday, October 19 — day 49 of 90. Here is one investor's MFN election, screen by screen, in the working solution.

  1. 01Monday, day 49

    Day 49 of 90, and the five things that need her

    Julia Bauer · Fund counsel

    Julia's Today screen opens on Fund IV: 19 of 52 packets sent, 7 answers in, 4 elections confirmed, every packet due out by October 30. Under it sit four numbers — 11 packets awaiting counsel, 3 where the agents disagree, 74 deliverables due this week, 9 obligations at risk and 1 missed — and beside them the agents' morning note, with questions she can ask: “Why are 6 terms excluded?”, “What do we owe Noordmeer next?”, “Who checked this ballot?” Her first item: approve Noordmeer's election packet, 38 pages prepared by Owen Castellanos, due October 20.

    MFN agent: “Noordmeer’s ballot is ready: 37 terms it may elect, 6 excluded with reasons. The Checker agent agrees with all 43 calls. Owen’s packet waits for your approval.”

  2. 02The ballot

    One investor, one MFN election ballot

    Investor agent and MFN agent

    Stichting Pensioen Noordmeer, a Dutch pension fund, committed EUR 120M directly and EUR 30M through Noordmeer Private Equity Pool B.V. The Investor agent adds the two vehicles and converts at the final-close rate its MFN clause fixes, 1.164: $174.6M, Tier B. Of the 171 terms in the compendium, the MFN agent finds 37 Noordmeer may elect, 6 excluded, 64 granted only to larger commitments and 42 carved out, 22 of them already in its own letter. Each electable term sits under the tier of the investor who received it, with the grantee, the category and its clause.

    “Checker agent agreed 43 of 43 · Window 30 days · Art. 7.4”

  3. 03One click on the clause

    Excluded terms stay on the ballot, with the Dutch clause

    Intake agent

    Six terms are tied to another investor's regulatory status: ERISA plan-asset reporting, US public records law, pay-to-play representations, Bank Holding Company Act passivity, US insurer capital data and Japanese insurer solvency data. They stay on the ballot, grayed, each with its reason — “Applies only to ERISA plans; Noordmeer is an EU investor.” One click opens Artikel 7.2 on page 4 of the letter: the Dutch original above the English, the carve-out highlighted in both, read by the Intake agent and verified by legal operations.

    “Cited by the MFN agent, the Checker agent and the Packet agent. Every reading of this passage is in the audit trail.”

  4. 0407:40

    A second agent re-derives every call, and holds the packet when they differ

    Checker agent

    Before a packet reaches counsel, the Checker agent works out every eligibility call again on a different model, without seeing the MFN agent's answers. On Noordmeer it agreed 43 of 43. On Kisaragi Mutual Life Insurance Company it did not: the MFN agent excluded X5, data for US insurer risk-based capital and Schedule BA filings, as US-only; the Checker agent reads Kisaragi's clause (§9.2) as testing the type of investor, an insurer, not its country. The packet is held and both reasonings go to Julia, with “Keep excluded” and “Make electable”.

    Question for counsel: “Does ‘same regulatory status’ in §9.2 mean any insurer, or a US insurer?”

  5. 05She asks

    “Why is Rivermouth’s term locked?”

    Julia Bauer · Fund counsel

    Julia asks the agents beside the ballot. Rivermouth Corporate Pension Plan committed $175.0M; Noordmeer's two vehicles convert at the final-close rate to $174.6M, and its clause allows only terms granted to commitments not greater than its own — so Rivermouth's 9 terms stay locked by $0.4M. At today's rate it would pass, but the clause fixes the final-close rate. Beside the ballot, the obligation register counts 268 ongoing obligations for Fund IV, 14 of them Noordmeer's own.

    Next deliverables: the Project Kestrel excuse notice to Noordmeer by Oct 23, the Q3 ILPA template to 41 investors by Nov 14, the SFDR adverse impact statement to 7 EU investors by Nov 30.

  6. 06Prepared Oct 16

    A 38-page election packet with a Dutch courtesy translation

    Packet agent · Owen Castellanos, IR

    The Packet agent drafts the packet: the cover letter in English beside a Dutch courtesy translation, Noordmeer's eligibility, the 37 terms it may elect in full, the terms not available and why, the election form, the signature page and the instructions and deadline. Owen prepared it on October 16. The checks run before approval are listed beside it: 43 of 43 calls agree, the commitment aggregated from the register, the final-close rate, 6 exclusions each with its clause, 5 conditions printed with their terms, English governs, and no other investor's name beyond the grantee type.

    “The person who prepares a packet can never approve it; counsel can never send it.”

  7. 07Approved

    Counsel approves, with a reason and her name

    Julia Bauer · Fund counsel

    Julia approves the 38 pages with reason AP-01, “Eligibility agrees with the MFN clause”. The other reasons are AP-02, an override recorded with counsel's reading, and AP-03, conditions attached and accepted; returning a packet takes a reason too. Owen sends it through the investor portal, and the 30-day election window runs to November 18.

    “I approve this packet as Fund Counsel. My name, the reason and the time are recorded.”

  8. 08Answers come back

    Every MFN election form read for over-election, conditions and money

    Response agent · David Arceneaux, CFO

    As election forms come back through the portal, the Response agent reads each one. Ashgrove University Endowment elected 4 terms it may not elect, granted only to larger commitments, and a correction is drafted. Calloway elected 2 terms whose conditions its form did not repeat. Caisse de Retraite des Ingénieurs Valmont elected 9 terms, including P28, 5% annual interest on excess capital returned more than 30 days late — a term that moves money, so David Arceneaux, CFO, co-signs before counsel confirms.

    Response agent: “Elected 9 terms, including P28 (5% interest on capital returned late), which moves money: CFO co-sign needed before confirming.”

  9. 09Confirmed

    Every promise becomes a dated obligation with an owner

    Obligation agent · Renee Okafor, compliance

    Each confirmed term becomes an obligation with an owner, a due date, how often it repeats and the evidence that proves it. The register holds 4,118 ongoing obligations across 40 funds and 900 side letters: 1 overdue, 74 due this week, 312 in the next 30 days. Noordmeer's excuse notice for Project Kestrel, a tobacco distribution deal, is due October 23, 10 business days before signing on November 6 — and the deal team sees it only as an anonymized restriction.

    “Deal teams see excuse rights as anonymized restrictions”

  10. 10A missed date

    A late statement, escalated and cured in the open

    Obligation agent · Renee Okafor and Julia Bauer

    Lakemont County Employees' Retirement System's October capital account statement in Excel was due October 16 under Section 4.3 of its side letter and went out October 19, one business day late, because the administrator's month-end file arrived October 17. The Obligation agent had reminded the owner at T-5 and escalated on the ladder: compliance at T-3, counsel and the CFO at T-1, the general counsel at breach. It drafted the cure notice with the clause and evidence; Renee prepared it, and counsel approves before anything is sent.

    Cure notice: “We have moved the administrator’s cut-off two business days earlier so this does not recur.”

Who it’s for

Built for everyone who keeps a side letter promise.

The same MFN election, seen by five of the people who carry it — what the months after final close looked like, and what they look like now.

JB
Julia BauerFund Counsel, Private Markets Legal · London
Fund counsel
Before
Re-reads side letters against the MFN clause, and corrects investors who over-elect one round of letters at a time. “Show me why each term is in or out, and where it says so.”
Now
Approves calls, not spreadsheets: every term in or out with its reason and clause, and only the calls where two agents disagree need her judgment.
OC
Owen CastellanosInvestor Relations Manager · New York
Investor relations manager
Before
Builds election forms out of a compendium and chases answers by email. “I want every LP to get one clean ballot, not a 200-page compendium.”
Now
Checks the packet the Packet agent drafted, sends approved packets through the investor portal, and sees every investor's window clock.
RO
Renee OkaforFund Compliance Officer · New York
Fund compliance officer
Before
Owns promises scattered across compendia and spreadsheets. “A promise without an owner and a date is a breach waiting to happen.”
Now
Owns one obligation register where every promise has an owner, a date and evidence, and the escalation ladder runs before a date is missed.
DA
David ArceneauxCFO, Private Markets · New York
CFO, private markets
Before
Needs every election that changes fees, expenses, interest or payments in front of him before it binds the fund. “If an election changes what we pay or charge, I sign it.”
Now
Co-signs each money term the Response agent flags, and signs the quarterly obligations attestation from one report.
TA
Tom AveryLegal Operations Analyst · London
Legal operations analyst
Before
“The Dutch letters used to sit until counsel had a free afternoon.”
Now
Verifies only the provisions the Intake agent read below 0.90 confidence, with the original language beside the English.
Built on the engine

7 agents. Each with one job, and hard limits.

Seven agents read, check twice, draft and track every letter; IR prepares, counsel approves, the CFO co-signs.

Intake agent

Reads every side letter in its own language — English, Dutch, German, French or Japanese — splits it into provisions, cites each to its clause and page and classifies it, keeping the original beside the English.

  • Never edits a letter
  • Any provision below 0.90 confidence goes to legal operations
Investor agent

Matches each letter to the investor register, adds up affiliated vehicles' commitments, converts them at the final-close rate and records each investor's legal, tax and regulatory status.

  • Never changes a commitment
  • A missing status or affiliate holds the packet
MFN agent

Works out each investor's eligibility for every term — the commitment tier test, the status test and the carved-out classes — and writes the reason with the clause.

  • Never decides an override
  • An excluded term is never hidden; it is grayed with its reason
Checker agent

Re-derives every eligibility call from the same sources on a different model, without seeing the MFN agent's answer.

  • Cannot release a packet
  • Any disagreement holds the packet and goes to counsel with both reasonings
Packet agent

Drafts each investor's election packet: the cover letter with a courtesy translation in the investor's language, the eligibility summary, the terms in full with their conditions, the exclusions with reasons and the election form.

  • Never sends
  • A packet goes out only after counsel approves and IR sends
Response agent

Reads each returned election form, flags over-election and terms elected without their conditions, drafts the confirmation and updates the investor's letter and the side letter compendium.

  • Never confirms an election
  • Any term that moves money also needs the CFO
Obligation agent

Turns every promise into an obligation with an owner, a due date, a recurrence and an evidence rule; checks the administrator or portfolio team can deliver it; watches deadlines, escalates and drafts cure notices.

  • Never marks an obligation delivered without evidence
  • Never writes to an investor unseen
IR, fund counsel, CFO, compliance

Maker, checker, co-sign, owner. The agents propose; a named person decides.

Ask in plain words

Ask the agents about any investor, term or promise

Ask beside the ballot or from Today. Every answer cites the clause, and the agents can act on it: open the ballot at a term, filter the register, draft a notice for approval.

Why is Rivermouth’s term locked?

Rivermouth Corporate Pension Plan committed $175.0M. Noordmeer’s two vehicles total EUR 150M, which converts at the final-close rate to $174.6M. Noordmeer may only elect terms granted to investors whose commitment is not greater than its own, so Rivermouth’s 9 terms stay locked by $0.4M. At today’s rate it would pass, but the clause fixes the final-close rate.

Why are 6 terms excluded?

Six terms are tied to another investor’s legal, tax or regulatory status, which Noordmeer’s clause carves out: ERISA plan-asset reporting (Corriden), public records law and pay-to-play (Harlow County), Bank Holding Company Act passivity (Thornbury), US insurer capital data (Brightwater) and Japanese insurer solvency data (Kisaragi). Noordmeer is an EU pension fund, so none applies. They stay on the ballot, grayed, so Noordmeer’s counsel sees why.

What do we owe Noordmeer in the next 60 days?

Four deliverables: the Project Kestrel excuse notice by Oct 23, the quarterly report in Noordmeer’s look-through template by Nov 14, the Q3 look-through data for De Nederlandsche Bank by Nov 14, and the SFDR principal adverse impact statement by Nov 30. All four have owners; Kestrel is at risk.

Draft the cure notice for the late Lakemont statement

Drafted. The October capital account statement was due Oct 16 and went out Oct 19, one business day late, because the administrator’s file arrived Oct 17. The notice explains the cause, attaches the statement and the delivery receipt, and states the fix: the administrator’s cut-off moved two days earlier. Renee prepared it; it needs your approval before it goes.

Every screen

The working solution, as it ships.

13 screens from the working solution, on its sample data. Pick one to see it large.

TodayFund counsel's day in side letter management: day 49 of 90 of the MFN election, packets awaiting counsel, agent disagreements, deliverables due and obligations at risk, with one next step each.
The MFN election ballotOne investor's MFN election ballot: commitment aggregated across two vehicles at the final-close rate, the tier, 37 terms it may elect grouped by tier, and the excluded terms grayed with the clause.
The clause behind every termA side letter provision cited to its article and page, the Dutch original above the English with the MFN carve-out highlighted in both.
When the two agents disagreeA held ballot: the MFN agent and the independent Checker agent read a status-specific term differently, and counsel keeps it excluded or makes it electable.
Ask the agentsA cited answer on why a larger investor's terms are locked by $0.4M, beside the side letter obligations register and the next deliverables due.
The election packetA 38-page MFN election packet with its page list, the English cover letter beside a Dutch courtesy translation, the maker and checker, and the checks run before approval.
Counsel approvesFund counsel approves the election packet with a reason code; her name, the reason and the time are recorded.
Answers readReturned MFN election forms read by the Response agent: over-election, missing conditions, and a term that moves money waiting for the CFO's co-signature.
The obligation registerSide letter obligations tracking across 40 funds: every reporting, notice, excuse-right, ESG and tax obligation with its owner, due date, recurrence and status.
At risk and missedThe escalation ladder for a missed side letter obligation, what the Obligation agent did, and the cure notice it drafted for counsel to approve.
ReportsDays from final close to MFN elections closed by fund against the 90-day target, deliverables on time by type, and the board, SEC examination and attestation reports.
The audit trailEvery action by people and agents — who, what, when, why and the evidence — on a hash-chained audit trail, ready to export for a regulator or auditor.
Your MFN rulesThe MFN rules: commitment tiers with the investors in each, the equal-or-smaller test, affiliate aggregation and the final-close FX rate, with two setting changes waiting for counsel or compliance approval.
Governance

Side letter compliance built in: cited, checked twice, signed.

Every term cited to its clauseEvery provision, eligibility call and agent answer cites the clause and page it rests on, and the original language stays beside the English translation.
Every eligibility call checked twiceThe Checker agent re-derives each call on a different model without seeing the first answer. Any disagreement holds the packet and goes to fund counsel with both reasonings side by side.
Maker, checker and co-signerIR prepares and counsel approves every election packet; counsel never sends. Any elected term that changes fees, expenses, interest or payments needs the CFO as second approver, and compliance's cure notices need counsel.
Overrides carry a reason codeCounsel can override an eligibility call only with a reason — OV-01 agent misread the clause, OV-02 investor status changed, OV-03 counsel interpretation, applied as precedent — and a note, on the audit trail.
Need-to-know, by regionDeal teams see excuse rights as anonymized restrictions, never an investor's letter, and the platform administrator cannot read side letter text. EU investors' letters stay in the EU region, and data can be held in the US, the EU or Singapore. Retention is the fund term plus 7 years, longer than the five years SEC Rule 204-2 asks for, with legal hold.
A hash-chained audit trailEvery action by people and agents is recorded with who, what, when, why and the evidence, hash-chained, and exports as one pack for a regulator or auditor.
Configuration

Side letter management on your LPA's MFN rules

The MFN agent applies the rules each fund's LPA sets. The platform administrator proposes a change, and it takes effect only after counsel or compliance approve it — the proposer never approves.

SettingDefaultChoose from
Commitment tiers (Fund IV)A $300M and above · B $150M–$299.9M · C $75M–$149.9M · D $25M–$74.9M · E under $25MSet per fund in the fund setup
Equal or smaller commitmentOnOn · Off
Aggregate affiliatesOnOn · Off
Final-close FX rateEUR 1.1640 · GBP 1.3410 · JPY 0.00671 · CAD 0.7260 (Aug 31, 2026)Fixed at each fund's final close
Status testTerms tied to a legal, tax or regulatory status only for investors of the same statusOn · Off
Election window30 days from receiptSet per fund in the fund setup
Extraction confidence for review0.90A change to 0.92 is proposed and waiting for approval
CFO co-signAny amountFor elected terms that change fees, expenses, interest or payments
Connections

Works with the systems your side letters already live in

Document managementside letters, LPAs and amendments, in any language
Investor registercommitments, vehicles and investor status, from the fund administrator
CRMinvestor contacts and IR coverage
Investor portal and e-signatureelection packets out, signed election forms back
Compliance calendarevery obligation and its due date
Portfolio monitoringexcuse-right restrictions, anonymized for deal teams
What it changes

The difference, in numbers.

Every figure is labelled: a target the solution is built to, an estimate, a typical published result, or a proven one.

target
90days
or less from final close to every MFN election closed
By hand9–12 months
With agents≤ 90 days
target
100%
of eligibility calls checked twice, by two independent agents
every call
not a spot check
target
0
side letter promises without an owner, a due date and evidence
Todaycompendia nobody re-reads
With agentsevery promise on the calendar

“demo” = seen in the working solution, on its sample fund data · “target” = the design goal, measured in the live solution · “estimated” = our estimate · “typical” = published figures (a vendor's published article on MFN elections — 9 to 12 months by hand against a 90-day market aim; SEC FY2026 examination priorities; AIFMD Article 23(1)(j)). People, firms, funds and investors named on this page are fictional — characters and sample data in the working solution.

Questions

What fund counsel and IR ask about side letter management.

What is Side Letter Management?

Side Letter Management is side letter management software for private fund managers: it tracks every side letter obligation and runs MFN elections for fund legal and IR teams. Seven agents read every letter in its own language and cite each term to its clause, check each investor's eligibility twice, draft a ballot and an election packet per investor, read the answers and turn every promise into a dated obligation with an owner. IR prepares, fund counsel approves every packet and the CFO co-signs any term that moves money.

What is an MFN election in private equity?

In a private equity side letter, an MFN provision gives an investor the right to elect terms that other investors negotiated. After the fund's final close, each investor holding that most-favored-nation right makes its MFN election within an election window. Its MFN clause sets what it may elect — typically terms granted to investors with an equal or smaller commitment, and not terms tied to another investor's legal, tax or regulatory status. Side Letter Management gives each investor a ballot of exactly those terms, with the excluded ones shown beside the clause that excludes them.

How does the MFN election process work in Side Letter Management?

The Intake agent reads every side letter and the Investor agent aggregates each investor's vehicles at the final-close rate. The MFN agent decides every eligibility call and the Checker agent re-derives it independently. The Packet agent drafts the packet, IR prepares it, counsel approves it and IR sends it through the investor portal. The Response agent reads the returned election form, counsel confirms, and each confirmed term becomes an obligation.

How do you track side letter obligations?

Side letter tracking starts from the letter: every promise in it becomes an obligation with an owner, a due date, a recurrence and an evidence rule, in one register across funds. An obligation is marked delivered only with evidence, and deadlines escalate on a ladder: the owner at T-5, compliance at T-3, counsel and the CFO at T-1, the general counsel at breach. For each promise, the Obligation agent also checks that the administrator or portfolio team can deliver it.

Can it read side letters in other languages?

Yes. The Intake agent reads letters in English, Dutch, German, French and Japanese, and shows the original beside the English for every provision. Election packets carry a courtesy translation in the investor's language, with English governing. Any provision read below 0.90 confidence goes to a legal operations analyst to verify.

How does it support side letter compliance and SEC exams?

The SEC's FY2026 examination priorities name differential treatment of investors, including side letters, and AIFMD Article 23(1)(j) requires preferential treatment disclosure to investors before they invest. Side Letter Management keeps every side letter, ballot, election and obligation with its evidence on a hash-chained audit trail, and generates an SEC examination pack on preferential treatment and an export for regulators and auditors.

Do people stay in control of MFN elections?

Yes. The agents never send anything to an investor, never confirm an election and never mark an obligation delivered without evidence. IR prepares and fund counsel approves every packet with a reason code, overrides need a reason and a note, the CFO co-signs any term that moves money, and the person who prepares a packet can never approve it.

How long does it take to go live?

The Agentic Solution Engine builds and deploys it from your requirements and documents — your LPA's MFN section, a sample of side letters and your investor register — and it goes live once every quality gate has passed. We will walk you through it on your own side letters first.

See it on
your side letters.

We'll run Side Letter Management on a sample of your own side letters and your fund's MFN clause.