A lateral partner move is a partner changing firms — carrying client relationships, active matters and sometimes a team, rather than advancing through the firm's own partner track.
It works through the hiring firm's diligence: a questionnaire documenting your practice, a conflicts check against the firm's client base, agreement on how your book is credited and on your terms, then the transition itself.
Ethics rules adopted state by state shape what a firm can restrict and how conflicts are handled.
Why do partners change firms?
A partner weighing a move is weighing what any lawyer weighs — compensation, platform, geography, culture — plus a set the associate version of the question does not have.
The practice itself can be the driver: a current firm whose conflicts block work for a client, a practice that needs depth or a platform the firm cannot provide, a book that has outgrown the firm's footprint.
What makes the partner version a different operation is what travels and what stays: a law firm partner moving laterally may carry client relationships, the matters attached to them and a team, and leaves behind partnership terms, capital and credit for work in progress.
For the general process at any level — timing, recruiters, resignation — our guide to lateral moves covers the mechanics; this page stays on what changes at partner level.
The law underneath all of this is the ethics rule on practice restrictions.
Under the ABA's Model Rule 5.6(a), a lawyer shall not offer or make a partnership, shareholder, operating, employment or similar agreement that restricts a lawyer's right to practice after the relationship ends — the rule names partnership agreements expressly — with an exception for agreements concerning retirement benefits.
The rule's commentary explains the logic: restrictive covenants limit the lawyer's autonomy and the client's freedom to choose a lawyer.
Two edges of the rule are worth knowing before you negotiate an exit.
Model Rule 5.6(b) bars agreeing to a practice restriction as part of settling a client controversy, so a restriction cannot be traded away in a dispute.
And the commentary notes the rule does not reach restrictions included in the sale of a law practice under Rule 1.17 — the sale-of-practice route sits outside the covenant ban.
A federal non-compete rule sometimes makes headlines; for a lawyer's mobility it is not the operative rule.
The FTC's Noncompete Rule is not in effect and not enforceable — a district court stopped enforcement on August 20, 2024, and the FTC moved to dismiss its own appeal on September 5, 2025, so the FTC's page said as of October 2, 2026 that the rule is not in effect.
The non-compete rule that governs your move is the version of Rule 5.6 adopted where you practice.
What is the lateral partner questionnaire (LPQ)?
The lateral partner questionnaire — the LPQ — is the document a hiring firm uses to open its diligence on your practice.
It is where the move becomes concrete: the client relationships you would bring, how each relationship originated and who is credited with it, revenue and work in progress, the matters each relationship generates, the team that works with you, and the clients and adverse parties the firm will need to check against its own conflicts system.
Each block of the questionnaire serves a different part of the firm's decision.
The client and matter detail feeds the conflicts check — under the imputation rule described below, one hire can change what matters the whole firm can take on, so the firm needs your conflicts picture before an offer, not after.
The relationship and revenue detail is the business case: the firm is underwriting a practice, not just a lawyer.
The team detail is the integration plan — who arrives, what they work on, what support the practice needs in its first months.
From the firm's side, the same diligence runs the process — our guide to lateral hiring covers how employers work through it.
Fill it out as if it will be checked, because it will be: under the ABA's Model Rule 1.10(a) one lawyer's conflict is imputed to the whole firm unless an exception applies, such as the screen described below, so the firm checks what you list against its own client base — and an entry that is incomplete or remembered differently from the file creates a harder conversation after you have started than before.
Keep the underlying record as you go — clients, origination, matters, the team — so the questionnaire is assembly rather than archaeology.
NALSC publishes the U-LPQ, an open-source Uniform Lateral Partner Questionnaire that any search firm or law firm may use, and estimates it covers about 80% of the data a firm needs from a lateral partner; ask early which form the firm uses so you can gather what it asks for.
How do you prove a book of business is portable?
The question underneath a partner lateral is which client relationships would actually follow you — the portable part of your book of business.
The questionnaire documents the book; portability is argued relationship by relationship: which clients are attached to you personally rather than to your firm's brand or institution, where each relationship started, who services the work today, and what is realistically in the pipeline.
Expect the diligence to probe the difference between a relationship that is yours and one that belongs to the firm.
A client you originated and kept across firms is a different story from a client that came to the firm for its platform or its name, and a firm evaluating you will try to tell those stories apart before it prices the offer.
Documentation carries the argument: the origin of each relationship, your role in retaining it, the revenue trend and work in progress by client — recorded as facts you can stand behind rather than projections.
What counts as a book and how firms credit origination once you arrive is covered in the book-of-business guide.
One boundary sits over all of it: you can only document what you are permitted to share.
What client information you may take or use during a lateral process is governed by the professional-conduct rules adopted where you practice, and firms' own processes differ — route any question about what you may disclose to your state bar's ethics counsel before you hand anything over.
Conflicts and client transition: what Model Rule 1.10 does
Conflicts are the mechanical heart of a partner lateral, and the imputation rule is why.
Under the ABA's Model Rule 1.10(a), a conflict of any one lawyer in a firm under Rules 1.7 or 1.9 is imputed to all the firm's lawyers, unless an exception applies.
One arriving partner can therefore change what an entire firm can take on — which is why a firm will want your conflicts picture before an offer rather than after.
The model rule also builds the exception that lets a firm hire around a former-client conflict.
Under Model Rule 1.10(a)(2), a lateral's former-client conflict from a prior firm is not imputed to the new firm if the lawyer is timely screened from the matter and is apportioned no part of the fee from it.
The screen carries its own machinery: prompt written notice to the affected former client describing the screen, stating the firm's compliance, noting that tribunal review may be available and agreeing to respond to inquiries; and certifications of compliance from the screened lawyer and a partner, given at reasonable intervals on the former client's written request and when the screening ends.
For a partner, the money rule matters as much as the wall itself: comment [8] to Rule 1.10 lets a screened lawyer keep a salary or partnership share set by a prior independent agreement, but no compensation directly related to the screened matter.
A screen does not cost you the seat — but the screened matter cannot feed your compensation either.
The commentary also sets the notice's shape and timing: it should describe the screened lawyer's prior representation and go out as soon as practicable after the need for screening becomes apparent.
And the model screen operates without the former client's informed consent, though a tribunal may weigh other factors on a disqualification motion.
A team changes the picture again.
A nonlawyer's conflict — a paralegal's or legal secretary's — is not imputed to the firm under Rule 1.10(a), but such persons ordinarily must be screened from any personal participation in the matter.
The mobility rule covers lawyers, not staff: Rule 5.6 restricts agreements limiting a lawyer's right to practice, while restrictions on nonlawyer staff sit under ordinary state contract and employment law.
The rule runs in the other direction too.
Under Model Rule 1.10(b), after a lawyer leaves, the old firm may act adverse to that lawyer's former client unless the matter is the same or substantially related and a remaining lawyer has material protected information — the book you leave behind does not freeze your old firm's practice.
The client's position is the point the rules are built around: the commentary that explains the covenant ban grounds it in the client's freedom to choose a lawyer.
How and when you tell clients about a departure is not settled by the model text we cite here, and our research did not verify the state rules on it — treat that conversation as an ethics question to answer with your state bar's ethics counsel before you resign, not after.
States differ — the model rule is not your state's rule
Guarantees, equity tiers and integration terms
Past conflicts, a partner lateral is a negotiation about terms, and the list is longer than an associate's offer letter: the compensation structure and how the firm credits the book you bring, which partnership tier you enter and with what rights, capital requirements and what happens to a capital account on exit, treatment of the work in progress and receivables you leave behind, and the platform the practice gets.
How law firm partners are paid covers the compensation models those terms feed into.
The tier question is worth pressing, because not all partnerships are the same instrument.
At multi-tier firms in NALP's data, equity partners were 56.3% of all partners in 2024, down from 61.3% in 2011 — the non-equity tier has grown as a share of partnership.
Access is not uniform either: in 2024, nearly 60% of men partners at multi-tier firms were equity partners, versus 48% of women partners and 47% of partners of color.
Which tier an offer puts you in, and what vote, capital stake and compensation formula come with it, is a term to read rather than an assumption to make.
Where an offer includes a guaranteed level of compensation for an initial period, the guarantee is a bridge between your old economics and the new firm's, and its fine print decides whether it holds.
The questions to ask: how long it runs, what formula it converts to when it ends, how origination credit is calculated under it, and what happens if a screened matter or a slow client transition depresses the book in the first year.
The answers live in the offer documents themselves.
- Which partnership tier the offer puts you in, and what rights and obligations attach to it
- How the firm credits the clients you bring, and how credit splits on shared relationships
- How work in progress and receivables from your current firm are treated
- What the guarantee covers, how long it runs, and what formula it converts to
- Which of your matters need a screen under the firm's conflicts analysis, and what that keeps you from
- What platform, staffing and support the practice gets in its first year
Where to find law firm partner jobs
Partner openings are posted like any other job, but each one carries its own terms: the platform a firm is buying, the practice it wants to build, the expectations that come with the seat.
That makes the listing itself the first diligence step — read what the firm says it needs, and bring the questions from the section above to the first conversation.
You can browse law firm partner jobs on LawFirmHires — the board carries legal jobs only, so every listing is a legal role rather than a general posting, and the law firm partner hub collects the rest of the partnership guides.
Career information, not legal advice. The rules described here are the ABA's Model Rules, and each state's adopted version governs — confirm anything that affects your own move with your state bar or its ethics counsel.