What are side letters and what do LPs negotiate?

What actually gets negotiated

Cooley's commentary lists twenty-one categories. They are reproduced here as categories, in its own grouping, because the list is more complete than anything else published on the subject.

• Most favoured nation elections, aggregation, and side letter administration.
• Advisory committee rights and participation in governance.
• Information, reporting, and books and records.
• Confidentiality, freedom of information obligations, and permitted disclosure.
• Tax reporting and tax protection.
• Legal, regulatory, anti-money-laundering, sanctions, and anti-corruption provisions.
• National security sensitivities, including foreign investment review and outbound investment rules.
• Responsible investment, restricted investment, and environmental and social provisions.
• Co-investment and secondary opportunity provisions.
• In-kind distributions and public securities.
• Transfer, assignment, and reorganization rights.
• Subscription facility, borrowing, and credit support provisions.
• Placement agent, political contribution, and public pension provisions.
• Representations, litigation, and status confirmations.
• Power of attorney and document execution.
• Alternative vehicles, parallel funds, and structural accommodations.
• Excuse, exclusion, and withdrawal rights.
• Fees, expenses, and economic clarifications.
• Digital assets, commodity interests, and emerging asset classes.
• Use of name, logo, and publicity.
• Sovereign immunity, jurisdiction, and limitations of liability.

The provisions that change how the fund operates

Most side letter requests are administrative. Four categories are not, and these deserve a decision rather than an accommodation.

• Excuse rights. Cooley describes them as allowing an investor to be excused from an investment or released from future capital contributions where participation would breach law, regulation, tax rules, or specified internal policies, and warns that they alter the investor's participation in the blind pool and can affect allocations, expenses, capital commitments, diversification, borrowing base calculations, and the fund's ability to complete investments.
• Co-investment rights. The distinction between a soft acknowledgement of interest and a hard allocation right is the whole question, and Blueprint's page on most favoured nation and co-investment rights works through it.
• Transfer rights. Cooley notes that side letters often soften the transfer standard for affiliates, successors, related governmental agencies, managed accounts, and feeders, and cautions that a manager should not give away transfer control too broadly.
• Fee and expense clarifications. Anything that alters economics for one investor changes the arithmetic for everybody else, which is why these sit differently from a reporting accommodation.

Sequencing, which decides how much you concede

Side letters are negotiated under time pressure at a close, which is precisely when a manager is least able to think about year six.

Cooley's framing of the authorization question is the structural point: the partnership agreement can authorise side letters broadly, permitting the general partner to grant rights not granted to others, or it can authorise them with limits, permitting them only so long as they do not materially and adversely affect other investors, alter the fund's basic economic terms, require the fund to act inconsistently with the agreement, or impose obligations on other investors. Which of those two your documents contain determines how much room you have before a request becomes a problem.

On precedence, the same commentary notes that side letters often provide that as between the investor and the fund the side letter controls in the event of a conflict, describes that as a natural provision, and cautions that it should not be drafted so broadly that it changes the rights of other investors or alters fund-level mechanics the manager cannot administer.

The operational half, which is where the cost lands

Cooley is direct that the real work comes after the close, and that a side letter sitting in a closing binder without being operationalised is a future problem. The recommended artefact is a matrix.

• One row per investor, with commitment amount and side letter status.
• The rights granted, the most favoured nation status, the provisions elected, and the provisions that were not electable.
• Reporting obligations and notice obligations, mapped to the reporting calendar rather than kept separately.
• Transfer rights, disclosure rights, and in-kind distribution elections.
• Restricted investment provisions, which have to reach whoever screens deals rather than sitting with counsel.
• Special tax provisions, including the qualifiers Cooley notes are load-bearing rather than decorative, such as commercially reasonable efforts, to the extent in the general partner's possession, and at the investor's expense.
• Maintained over the life of the fund rather than only during closing, which is the sentence most first-time managers discover the truth of in year three.

Blueprint's page on reporting covers the calendar these obligations feed into, and the administrator's role in producing what the matrix commits you to.

What limited partners are testing

The side letter conversation is a preview of how you will handle the next ten years of requests.

• Does the manager know what their partnership agreement authorises them to grant?
• Are the reporting commitments ones the fund can actually perform?
• Is there a matrix, and does somebody own it?
• Do the side letters and the questionnaire answers describe the same obligations?
• Has the manager thought about how one investor's excuse right affects everybody else's allocation?

What this page does not do

It publishes no side letter, no negotiating position, and no term any investor has obtained. Those are confidential to the parties, and a page that traded in them would be doing damage rather than teaching.

It also states no market position on any category. What is customary varies by fund size, investor type, and jurisdiction, and the useful preparation is knowing the categories rather than knowing somebody else's outcome.

This page is educational and general. It is not legal, tax, or accounting advice. What a side letter can grant, what it means, and how it interacts with the partnership agreement are questions for fund counsel, and the final rights of every investor are controlled by the fund documents and the executed side letters rather than by any description of them.