Law Firm Succession Planning: A Real Checklist

Ask a solo practitioner or a small firm's managing partner what happens to their open matters if they are hit by a bus next Tuesday, and you will almost always get a long pause followed by something vague about a friend down the hall who would probably step in. That answer is not a plan, it is a hope, and bar associations across common law jurisdictions have spent years quietly documenting exactly how badly that hope holds up in practice when a solo or small firm loses its principal attorney without warning.

Succession planning gets treated as a retirement topic, something to think about at sixty-five when a partner is winding down toward a golf course, but the real risk profile is much wider than that. Partners get sick. Partners get into accidents. Partners have disputes that end partnerships overnight. Every one of those scenarios leaves open matters, client trust funds, and ongoing deadlines sitting exactly where they were the moment the partner became unavailable, and a firm without a real plan is improvising its way through an ethics minefield at the worst possible moment.

This is not a theoretical exercise dressed up as a checklist. It is the actual set of decisions a firm needs to make while everyone involved is calm, reachable, and thinking clearly, because none of those conditions will be true on the day the plan actually gets used. What follows works through the real components in the order a firm should actually tackle them, not the order a law school ethics course might present them in.

Why "informal arrangement with a friend" is not a plan

The instinct almost every solo and small firm has is to find a colleague down the hall or across town, shake hands, and agree that if something happens, that person will step in and look after things. It feels like enough because it addresses the emotional need, someone knows, someone has agreed to help, and that feels like coverage. But an informal handshake arrangement fails in almost every dimension that actually matters when it gets tested for real.

There is usually no written authority for that colleague to access trust accounts, no documented list of active matters and their deadlines, no client consent on file, and often no clarity on compensation for the work the assisting attorney will actually have to do. When the moment arrives, that colleague is left trying to reconstruct the practice from scratch, under time pressure, with clients calling and courts not caring that the attorney they filed with is suddenly gone. State and provincial bar rules in most jurisdictions actually anticipate this exact failure mode, which is why many require or strongly recommend a written succession plan on file specifically because the handshake version so reliably falls apart.

Choosing the right assisting attorney or firm

The person or firm you designate needs to actually be capable of stepping into your specific practice, which sounds obvious but gets skipped constantly. A general litigator is not automatically equipped to competently manage a probate-heavy solo practice's open estates, and a firm with three associates and a completely different billing model may struggle to absorb a hundred active matters from a single practitioner on short notice, however willing they are in principle.

Look for someone practicing in a genuinely overlapping area, with enough spare capacity that absorbing your matters would not sink their own practice, and with a working relationship where you actually trust their judgment on client-facing decisions made under pressure. It is worth having a real conversation about compensation for this role up front too, whether that is a flat retainer, an hourly arrangement for the transition period, or a percentage of fees on matters they end up carrying to completion, because leaving that ambiguous is one of the more common reasons a designated assisting attorney quietly backs out when actually called on.

The written agreement itself, and what it actually needs to cover

A real succession agreement is a specific written document, not a verbal understanding, and it needs to cover more ground than most first drafts include. It should name the assisting attorney or firm explicitly, define the triggering events that activate it, death, incapacity, disbarment, disappearance, and specify exactly what authority is being granted, access to trust accounts, authority to notify clients, authority to seek extensions from courts, authority to review and triage open files.

It should also address what happens to the practice's revenue and existing staff during the transition, whether the assisting attorney is taking over the practice outright, winding it down, or simply covering it temporarily until a permanent resolution is found. Many jurisdictions' bar associations publish template succession agreements specifically because getting this document right without a template is genuinely difficult even for an experienced attorney, so start from a bar-provided template rather than drafting from scratch if one is available in your jurisdiction.

Getting real access to trust accounts sorted before it is needed

Trust account access is where succession plans most often collapse under actual scrutiny, because banks and bar regulators are understandably cautious about who can move client funds, and a general power of attorney is frequently insufficient on its own to satisfy a bank's compliance department when an attorney is suddenly unavailable. This needs to be worked out specifically and in advance, not assumed to be a detail that will sort itself out later.

Talk to your bank directly about what documentation they require to grant a designated successor signatory authority on trust accounts, and get that paperwork filed while you are able to sign it yourself, rather than leaving your successor to discover mid-crisis that the bank needs a court order they do not yet have. This is also exactly the kind of situation where a trust ledger that is actually clean and current matters enormously. A successor stepping into a practice where every matter has its own isolated trust ledger with a clear, accurate running balance can start reconciling within a day. A successor stepping into commingled or poorly reconciled trust records is looking at weeks of forensic accounting before they can responsibly move a single dollar, which is precisely the kind of situation Casely's trust accounting is built to prevent in the first place, since it blocks any disbursement from ever exceeding what is actually sitting in a matter's balance at the database level, so the ledger a successor inherits reflects reality rather than months of accumulated small errors nobody caught.

Building the matter inventory your successor will actually need

However good the legal agreement is, it is useless without an accurate, current picture of what is actually open, what stage each matter is at, and what is due when. A successor attorney's first genuine question is simple, what am I actually walking into, and if the honest answer is a filing cabinet and an email inbox, that question takes days to answer properly, days that active deadlines do not wait for.

The single most valuable thing a firm can do here is maintain a genuinely current, exportable matter list as a matter of ordinary practice, not as a special project undertaken once a year for succession planning purposes. A matter stage tracker that shows exactly where every active file sits, combined with a deadline diary where every date attached to a matter surfaces automatically with the soonest one always visible, turns what would otherwise be a forensic reconstruction project into something a successor can review in an afternoon and start acting on immediately. This is one of the clearer cases where the software a firm runs on day to day directly determines how survivable a bad day actually is, because the record either already exists in a form someone else can pick up cold, or it exists only in the departed partner's head and habits.

Client notification, done right and done in advance

When a succession plan activates, clients need to be told promptly, clearly, and in a way that protects their interests without creating unnecessary alarm, and drafting that notification language in the moment, under stress, while also trying to manage the actual transition, is a genuinely bad way to handle communication that clients will remember for a long time.

Draft the notification templates now, while things are calm. Cover what happened in general terms, who is now handling the matter, what the client needs to do if anything, and how to reach the new attorney. Most jurisdictions' ethics rules require some form of client notice on a succession event, and having that language ready and reviewed in advance means it goes out within days rather than weeks, which matters enormously to a client whose matter has a live deadline they do not yet know is now someone else's responsibility. A client portal that already gives clients a real-time view of their own matter status becomes genuinely useful here too, since a status update posted centrally reaches every affected client immediately rather than depending on a successor manually tracking down contact information for a hundred separate files under time pressure.

Staff continuity and the practical mechanics of keeping the lights on

Succession planning tends to focus entirely on the attorney and the client relationships, but a firm with any staff at all needs a parallel plan for them too. Who is authorized to keep paying salaries during a transition. Who has access to the office lease, the malpractice insurance policy, the software subscriptions the practice actually runs on. A practice that goes cloud-native rather than running on a server sitting in a back office removes one entire category of this problem outright, because a successor with proper login credentials can reach the firm's actual working systems from anywhere, on any device, without needing physical access to a specific machine in a specific building that someone else now controls.

Staff also need to know, in writing, what their role is during a transition period specifically, whether that is continuing to work under the assisting attorney's direction, being formally released to seek other employment, or something in between. Leaving this genuinely unaddressed creates a second crisis stacked directly on top of the first, since staff who do not know whether they are still employed tend to start looking elsewhere almost immediately, which can strip a transitioning practice of exactly the institutional knowledge a successor most needs during those first critical weeks.

Reviewing and actually updating the plan, not just filing it once

A succession plan signed five years ago and never revisited is barely better than no plan at all, because practices change shape constantly. New matters open in practice areas the original agreement never contemplated, the originally designated successor attorney retires or moves firms themselves, staff turn over, and the trust account details on file with the bank go stale. A plan needs a genuine annual review built into the firm's actual calendar, not left to whenever someone happens to remember it exists.

That annual review does not need to be exhaustive every single time. It needs to confirm the designated successor is still willing and still capable, confirm the bank access paperwork is still current, and confirm the matter inventory the successor would actually inherit reflects the practice as it exists today rather than as it existed when the agreement was first signed. Building this review into the same rhythm as an annual insurance renewal or a lease review means it actually happens, rather than becoming the kind of task that quietly falls off every firm's list the moment there is a busier week competing for attention.

What partnership and multi-attorney firms need beyond the solo checklist

Everything above matters for a multi-attorney firm too, but partnerships carry an additional layer, the partnership agreement itself needs to actually address what happens on a partner's death, incapacity, or unplanned departure, covering buyout terms, valuation methodology, and how that partner's open matters get redistributed among the remaining attorneys rather than dumped entirely on whoever happens to be least busy that particular month.

A firm with three or more partners is also in a genuinely stronger position than a solo practitioner in one specific respect, there are already other licensed attorneys inside the firm who know the clients and the matters, which removes much of the external successor problem entirely. What remains is making sure that internal redistribution is planned rather than improvised, that the partnership agreement's buyout terms will not force a fire sale of the practice at a bad valuation during an already difficult moment, and that connected matters sharing a client relationship or a referral history stay linked with the reason for that connection clearly stated, so a partner picking up a colleague's file understands the fuller context rather than just the isolated matter sitting in front of them.

Getting a real succession plan live at your firm

None of this is complicated in the sense of requiring specialized expertise a firm does not already have access to. It is complicated in the more mundane sense of requiring a firm to actually sit down, have a handful of specific and slightly uncomfortable conversations, and get the results written down properly instead of left as a shared understanding that only exists in people's memories. The firms that get burned by this are almost never firms that could not have built a real plan. They are firms that meant to, kept meaning to, and ran out of runway before the day the plan was actually needed.

Start with the two pieces that unblock everything else, naming and documenting a specific assisting attorney in writing, and confirming trust account access with your bank before it becomes an emergency question. Everything downstream of those two decisions gets substantially easier once they are settled, because a successor with confirmed account access and a clear legal authority to act can move immediately on the operational pieces, the matter inventory, the client notifications, the staff continuity questions, rather than getting stuck at the starting line waiting on paperwork that should have been filed months earlier.

The practical foundation underneath all of this is simply having a system of record a successor can actually step into cold, current matter stages, a live deadline diary, a trust ledger that reflects reality rather than months of drift, all reachable from any device without needing physical access to a specific office. If your firm is still running on a mix of spreadsheets, a filing cabinet, and one partner's memory, that is the more urgent fix to make before the succession agreement itself, since even a perfectly drafted legal document cannot make an unreadable practice readable to the person who inherits it. Our trust accounting page walks through exactly how that ledger integrity works in practice, which is worth a look regardless of where your firm currently stands on the rest of this checklist.