Most new solos feel a strange flatness in the first week after opening. The entity is formed, the operating and trust accounts are open, the office or the home setup is real, the website is live — and then nothing happens. No phone ringing. No inbox filling. Just you, your bar number, and the dawning realization that building the thing was the easy part. Now you have to make it go.
That shift is the whole point of this post. The setup work is done — and if you haven't finished it, that belongs to the 47-point opening checklist and the broader guide on how to start your own law firm, not here. This is the "I've opened — now what?" stage. The job just changed from setting up to getting traction, and almost nothing you did in the setup phase prepares you for it. Setup rewards thoroughness. The first 90 days reward a different muscle entirely: doing the uncomfortable, repetitive, revenue-facing work every single day when no one is making you.
The one thing that matters most: paying clients
You can get everything else wrong for a while. You cannot get this wrong. A law practice with no clients is not a slow practice — it is a hobby with malpractice insurance.
So before you reorganize your matter templates for the third time, be honest about where your hours are going. In the first 90 days, the single largest block of your week should be aimed at getting people to hire you. Not preparing to get clients. Not building systems that will one day help you get clients. Actually getting them — calls, conversations, follow-ups, asks.
This is the part most new solos avoid, because it feels like begging and because the legal work feels more like "real" lawyering. It isn't. Right now, business development is the real lawyering. The mechanics of where those first clients come from — your existing network, referrals from other attorneys, the practice areas where demand is steady — deserve their own treatment, and you'll find it in getting your first clients. What matters here is the priority: this work goes first in your day, not last, and it happens whether or not you feel like it.
One mindset shift helps. Every person who already knows you needs to learn two things they probably don't: that you've opened, and what kind of work you take. People can't refer you for something they don't know you do. The lawyer who quietly hopes word gets around waits a long time.
Build a weekly rhythm before you build anything else
Here's the trap. The legal work — the actual matters, once they arrive — is the only part of the job that comes with built-in deadlines and an angry person on the other end if you miss them. Everything else (marketing, billing, admin, following up on that intake call from Tuesday) has no external enforcement. So it doesn't happen. Not because you're lazy, but because urgent always beats important, and the non-legal work is rarely urgent until it's a crisis.
The fix is a recurring schedule, not willpower. Decide, in advance, when each kind of non-legal work happens, and protect those blocks the way you'd protect a court date.
A simple version that works for a lot of solos:
- Daily: a fixed early block for business development — outreach, follow-ups, returning inquiries fast. Same time every day.
- Weekly: one block for billing and money (more on that below), and one for admin — filing, email triage, the small things that pile up.
- Weekly: a short review — what came in, what you signed, what's still open.
The specifics matter less than the fact that they're on the calendar and they repeat. A mediocre rhythm you actually follow beats a perfect system you abandon in week three.
Tip
Watch cash like it's the only number that exists — because early on, it nearly is
Profit is an opinion. Cash is a fact. A new practice doesn't die because it isn't profitable on paper; it dies because there's no money in the account on the day rent and the malpractice premium are both due.
Three habits protect you here.
Get invoices out fast. The clock on getting paid doesn't start when you do the work — it starts when the client gets the bill. A new solo who bills monthly is financing clients for weeks at a time, for free, while their own bills come due. Bill promptly and on a predictable cadence. The fastest way to improve early cash flow isn't more clients; it's invoicing the work you've already done.
Mind the runway. Know, roughly, how many months you can operate at current burn before the account runs dry, and watch that number move. It tells you how much pressure you're actually under — and pressure you can see is far easier to manage than pressure you're avoiding looking at.
Handle the first trust deposits correctly, from the very first one. This is the one place in this whole post where "figure it out as you go" is the wrong answer. Client funds — retainers and advance fees that aren't yet earned — generally go into a separate trust account (often called IOLTA), kept entirely apart from your operating money. You don't dip into it, you don't "borrow" from it, you don't let it commingle with your own funds even briefly. The exact rules — what goes in, when you can move money out as you earn it, what records you must keep, the timing — vary by state and are set by your state bar. Learn your state's specific trust accounting rules before the first client retainer lands, not after. Few things end a young practice faster than a trust accounting violation, and the discipline is easiest to build when there's only one client's money to track.
Resist the urge to over-tool
There is a powerful temptation in the early days to spend your time buying and configuring software instead of finding clients. Practice management platform, document automation, intake forms, a CRM, scheduling tools, a research subscription, three apps that all do roughly the same thing. It feels productive. It feels like building a "real" firm. It is mostly a way to look busy while avoiding the scary work.
The honest test for any tool in the first 90 days: do I have enough real volume right now that this saves me meaningful time? Five clients don't need a CRM. They need a spreadsheet or a notebook and your attention. You can run an early solo practice on a shockingly small stack — a way to track matters and deadlines, a way to bill, a trust ledger, a calendar, and a place to keep documents. Add tools when the pain of not having them is real and present, not anticipated.
Under-tooling has a cost too — you'll do some things by hand that software would automate. But that cost is small and reversible. Over-tooling costs you the scarcest thing you have right now, which is the hours you should be spending getting work in the door.
Learn to say no to the wrong matters
When the phone is quiet, every inquiry feels like a lifeline, and the pull to take whatever walks in is enormous. Resist it more than you'd think.
The wrong matters cost you twice. They eat the hours you needed for the right matters and for business development, and they often come from clients who are difficult, who don't pay, or whose problem sits outside what you actually know how to do. Taking work outside your competence isn't just unprofitable — it's a malpractice and ethics exposure, and your state bar's competence rules apply to you on day one exactly as they apply to a firm of two hundred.
You don't need a rigid filter. A rough sense of three questions is enough: Is this work I can do well? Is this a client I can work with? Will this actually pay? A "no" on any of them is a reason to refer the matter out rather than take it. Referring well — and being known as someone who refers honestly — builds more goodwill than grabbing a bad case ever will.
Track two or three numbers, and no more
You don't need a dashboard. You need to know whether the thing is working, and that takes a small handful of numbers, written down somewhere you'll actually see them.
For most new solos, three are enough:
- Inquiries — how many people reached out about hiring you.
- Signed matters — how many of them actually became clients.
- Cash in — what actually landed in the account.
Those three, tracked weekly, tell you almost everything you need in the first 90 days. If inquiries are low, your business development isn't reaching enough people. If inquiries are fine but signed matters are low, the problem is in your intake or your pricing or your follow-up. If both are fine but cash is thin, look at your billing and collections. The point of measuring isn't to feel organized — it's to know which lever to pull when something's off, instead of guessing.
Don't add a fourth and fifth number because they're easy to track. More metrics this early is just another flavor of over-tooling.
Guard against the ways solos quietly fail
The technical risks of a new practice are real, but the ones that actually take people down are human.
Isolation. You went from a building full of colleagues to a room with one person in it. No one to ask "does this look right to you?" before a filing, no one to vent to who understands, no second opinion on a judgment call. This wears on you in ways you won't notice until it's heavy. Build a small bench of other lawyers — a few solos, a mentor, a listserv or bar section — people you can call. It is professional infrastructure, not a nicety.
No backup for deadlines. In a firm, a calendar mistake might get caught by an assistant or a partner. Alone, the calendar is the only thing standing between you and a missed statute of limitations. Treat your deadline system as the most important system in the practice. Use redundancy — calendar plus a written list, reminders set well ahead of the actual date — and think now about who covers your matters if you're hit by the flu or worse. "I'll handle it myself" is not a plan for the week you can't.
Burnout. The first 90 days run hot, and a certain intensity is fine and even necessary. What's not fine is treating that pace as permanent. A solo who burns out has no one to absorb the slack. Pace yourself like someone who intends to still be doing this in ten years, because the whole point is to build something that lasts.
What the first 90 days are actually for
Don't measure these months by the firm you wish you'd built. Measure them by two things: did you survive, and did you build momentum? Are clients coming in, even slowly? Is cash moving in the right direction? Have you started a rhythm you can keep?
That's the real job of the first 90 days — survival and momentum, not perfection. The systems that turn a surviving practice into a durable one — refined intake, pricing that holds, processes that don't depend on you remembering everything, a practice that runs on more than adrenaline — belong to the next stage. When you're ready for it, that's the work covered in how to run a law firm. For now, keep it simple: get clients, watch the cash, protect your calendar, and don't go it entirely alone.