Switching From Clio: What Moves, What Doesn't, and How the Cutover Works

Case files, calendar entries and documents stay where they are — that isn’t what LeanLaw does. QuickBooks Online stays the system of record for accounting. What moves is the billing and trust layer between them, in a controlled parallel cutover rather than all at once.

Whatever case management system a firm runs keeps doing that job before, during and after a switch, and the books stay in QuickBooks Online on day one and a year later.

Say the hard thing first: what doesn’t move

Historical invoices don’t migrate. No vendor can recreate a year of past bills inside a new system without introducing errors that nobody catches until an accountant, or a bar auditor, does, and any firm hearing otherwise should be skeptical. Old invoices simply stay where they were issued, retrievable for as long as the firm needs them there.

Case management, document management, calendaring and docketing, and intake stay wherever they already live. LeanLaw isn’t trying to replace any of that, and a firm evaluating a switch shouldn’t be sold on the idea that it will. The accounting itself follows the same rule: it was never leaving QuickBooks Online, and it isn’t leaving now. If a firm walks into this expecting the whole stack to change in one motion, that expectation needs correcting before the project starts, because it shapes how the firm staffs and schedules the work.

A single vendor relationship for everything is also something a firm gives up in this framing, and it deserves saying plainly rather than glossing over. Running a dedicated billing and trust layer alongside a separate case management system means two vendor relationships instead of one, and two support lines to call when something breaks. That’s a real cost, and it’s the honest counterweight to everything that follows.

What moves

What migrates is the material still in motion, not the record of what already happened. That means clients and matters, current billing rates, open work in progress that hasn’t been billed yet, and outstanding accounts receivable. That’s the working set a firm needs on the first day of billing under a new system, because nobody can bill against a matter that doesn’t exist in it yet, or collect against a balance nobody can see. Everything in that list describes where things stand today, not how they got there.

How the cutover actually works

The workable pattern is a parallel cycle, not a hard cutover on a single date. A firm runs one full billing cycle through both systems at the same time — the same time entries, the same rates, the same trust activity — and only retires the old system once the new one has produced a cycle the firm actually trusts. That gives a firm evidence to check the new system against, instead of a vendor’s word to take on faith.

Picture a firm with a mixed book of hourly and flat-fee matters. Its bookkeeper enters one month of time and trust activity into both systems and compares the two invoice batches line by line before either one goes out the door. If the totals match, that’s evidence the new system captured the same reality the old one did: rates carried over correctly, matters mapped to the right clients, work in progress landed where it should. If a handful of invoices don’t match, the gap usually traces to one of three places — a rate that didn’t carry over cleanly, a matter mapped to the wrong client, or a trust balance recorded differently between the two systems. Finding that gap during a parallel cycle, with the old system still live as a backstop, costs a bookkeeper an afternoon of reconciliation. Finding the same gap after the old system is already gone costs a client’s confidence in the invoice sitting in front of them.

Trust activity deserves the closest look in that comparison, more than the hourly line items. A rate discrepancy shows up as a wrong number on an invoice a client can question. A trust discrepancy is a liability the firm owes a client, sitting on a ledger somewhere, and the firm is the one accountable for knowing exactly what that number is at every point in the cutover. Running trust deposits, retainer draws and disbursements through both systems in parallel is the part of the exercise that actually protects the firm, and skipping it is where cutovers go wrong.

This is also where the two-way QuickBooks Online sync does its quiet work during a cutover. Because the accounting was never leaving QuickBooks Online in the first place, the parallel cycle is testing the billing and trust layer against a ledger that hasn’t moved — not migrating a ledger from one place to another. That’s a narrower, more checkable problem than a full accounting migration, and it’s why the corollary holds: switching is a billing-workflow change, not an accounting migration.

The one-vendor question, honestly

It’s worth sitting with the trade-off named above rather than rushing past it. A firm that has run case management and billing through one system for years has gotten used to one login, one support relationship, one place to file a ticket. Splitting billing and trust into a dedicated layer means accepting that convenience gives way to depth: a system built specifically for how legal billing and trust accounting work, connected to the ledger a firm already trusts, instead of a general practice-management tool doing accounting as a secondary job. Neither choice is free. The question a firm actually has to answer is which cost it would rather carry — the friction of two vendors, or the ceiling of one system trying to do both jobs well.

There’s no shortcut through any of this, and it isn’t something a firm does alone. Who actually does the work of moving the data is worth understanding before the parallel cycle starts, and so is a realistic sense of what determines how long the whole cutover takes for a firm’s particular situation.

What this depends on

• How many operating models the firm runs — a purely hourly practice reconciles differently than a firm mixing hourly, flat-fee and contingent matters in the same book.
• How clean the current QuickBooks Online chart of accounts already is; one that supports matter-level detail shortens the parallel cycle, one that doesn’t extends it.
• Who owns the reconciliation work during the parallel cycle — an in-house bookkeeper, an outside accountant, or some mix of both changes how quickly a discrepancy gets caught and fixed.
• How many timekeepers are entering time in two systems at once, which is the part of a parallel cycle that firms consistently underestimate when they plan the calendar for it.

The real question

The question worth asking before a demo isn’t what a firm stands to lose. Case management stays. Documents stay. The books stay in QuickBooks Online, exactly where they already are. The harder question is which of the firm’s current numbers — realization, open work in progress, the trust balance a partner is currently taking on a bookkeeper’s word for — the firm can already see clearly today, and which ones it’s been assuming rather than checking.