The short answer
Email marketing does two jobs for a law firm. It follows up with people who asked for help and keeps past clients and referrers in touch. Send it only to people who gave you their address, with an easy way to opt out. The follow-up emails usually matter more than the newsletter.
This guide to email marketing for lawyers is for owners and marketing leads at small US firms. The aim is signed cases, not opens. It covers who you can email, what to send and the rules to check first. Don't buy lists or email strangers.
What can email marketing do for a law firm?
It can win back people who were close to hiring you. It can also bring past clients back and remind them to refer friends. It can't find new clients by itself. Every address on your list should belong to someone who contacted you, hired you or asked to hear from you.
| Email type | Who gets it | What it's for |
|---|---|---|
| First reply | Anyone who just sent an inquiry | Confirms you got it and says when a person will call |
| Follow-up series | People who inquired but haven't hired you yet | Answers the questions that keep people from deciding, and invites them back |
| Newsletter | Past clients, referrers and people who signed up | Keeps the firm in mind for the next matter or the next referral |
| Review request | Past clients, after the matter closes | Asks for an honest review, the same way for every client |
Who should be on a law firm email list?
People who contacted the firm, hired it or asked to hear from it. Nobody else. Keep a separate group for each, so a past client does not get a message written for a new inquiry.
- Anyone who filled in a form or called and gave an email address. Record where it came from.
- Past clients who said yes when you asked, as the matter closed, whether they want occasional updates. Save the answer in your CRM.
- Lawyers and other professionals who send you cases, if they agree to hear from you.
- People who signed up in a box on your website, with a line saying what you will send and how often.
Split the list by practice area and by stage: inquired, hired, closed. An immigration client has no use for a crash checklist. If a person opts out, remove them from every group.
Follow-up emails for people who didn't hire you yet
Many people who contact a firm aren't ready on day one. They are comparing firms, waiting on an insurer or talking it over at home. A short series of emails keeps the door open without anyone at the firm having to remember to follow up.
A simple series for a small firm:
- Day 1Thank them, restate the next step and give one direct phone number.
- Day 3Answer the question people in that practice area ask most before hiring.
- Day 7Explain what happens in the first month after hiring the firm.
- Day 14Ask whether they still need help, with a one-click way to book a call.
- Then monthly, for a few monthsUnless they hire you, hire someone else or opt out.
Keep case details out of the emails, and out of subject lines in particular. In family law, ask first whether email is safe: some people share an inbox or a device with the other party. The CRM should hold that answer and stop the series if it's no. Our guide to law firm CRMs covers the fields and stop rules.
Rishabh built and ran follow-up systems like this inside law firms. For a worked example in UK terms, see our conveyancing lead nurture guide.
Is a law firm newsletter worth it?
It can be, if it goes to the right people and stays useful. Past clients and referrers are the audience. A newsletter keeps the firm in mind when a friend asks them for a lawyer, or when they need one again.
- Send it monthly or quarterly, at a pace you can keep.
- One useful item per issue: a law change in plain words, a deadline people miss, or an answer to a question clients ask.
- Estate planning firms can remind people to review documents after a life event.
- Injury firms can explain what to do after a crash.
- Immigration firms can flag processing changes, with a link to the official source.
- No case results unless you have checked how your state's advertising rules treat them.
If you only have time for one thing, set up the follow-up series first. It reaches people who already asked for help.
Past clients may also be glad to leave a review. The ask belongs in an email of its own; Google reviews for lawyers covers how to word it within the rules.
How do you write emails people open and answer?
Write it like a note from one person at the firm, with one plain subject line and one thing you want the reader to do. Short and specific beats clever.
- Say what is inside in the subject line, in plain words. Never use a misleading one, which federal law bars.[1] Leave case details out.
- Send from a real person's name and an address that gets read. A reply from a client is the point.
- Keep paragraphs short and give one next step, such as a booking link or a phone number.
- Use their first name and the kind of matter they asked about, not the details.
- Before you send, open it on your own phone, click every link and test the unsubscribe.
Email works better next to a fast reply and a steady flow of inquiries. Our lead generation work covers the ads that bring in the people these emails follow up with. Social posts reach people who do not know you yet; see social media for lawyers.
What rules apply to law firm emails?
Two sets of rules apply to marketing emails: federal email law and your state's lawyer advertising rules. Mail providers add their own sending rules on top.
| Rule | What it asks |
|---|---|
| CAN-SPAM Act (FTC): headers and subjects | The FTC's CAN-SPAM compliance guide lists the main federal rules for commercial email. Don't use false header information or deceptive subject lines.[1] |
| CAN-SPAM: say it's an ad | The FTC guide says you must "disclose clearly and conspicuously that your message is an advertisement", with leeway in how you do it.[1] |
| CAN-SPAM: address and opt-out | Include a valid physical postal address and a clear way to opt out.[1] |
| CAN-SPAM: honoring opt-outs | Honor an opt-out within 10 business days.[1] |
| CAN-SPAM: penalty | The FTC says each email that breaks the law can draw a penalty of up to $53,088.[1] |
| California Rule 7.1 | Rule 7.1 bars false or misleading communications.[2] |
| California Rule 7.2(c) | Requires the name and address of at least one responsible lawyer or law firm.[2] |
| California Rule 7.3(b) | Stop sending solicitations to anyone who has told you they don't want them.[2] |
| California Rule 7.3(c) | Covers emails that offer your services to someone known to need help with a particular matter. Unless an exception applies, those emails must say "Advertisement" at the start and the end.[2] Comment [1] says a reply to a request for information is not a solicitation.[2] It isn't clear whether a months-long follow-up series still counts as that reply, or needs the label. |
| Gmail: authentication | Google's sender guidelines ask every sender to set up SPF or DKIM email authentication.[3] |
| Gmail: spam rate | Keep spam rates below 0.3%.[3] Google's target is below 0.1%.[3] |
| Gmail: unsubscribe | Senders of more than 5,000 messages a day to Gmail accounts must also support one-click unsubscribe.[3] |
Other states have their own lawyer advertising rules, so check yours as well. Naelar isn't a law firm and doesn't give legal advice. Check your emails and your list with your ethics counsel before the first send.
Which tool should send the emails?
Send from the system that holds your inquiries, usually the CRM. Then the follow-up series stops as soon as a person hires you or books a call. A separate newsletter tool works too, as long as opt-outs sync both ways.
Legal CRMs such as Lawmatics and Clio Grow can send follow-up emails, and so can general CRMs such as HubSpot and GoHighLevel. Check which plan includes texting before you count on it. Our intake software guide compares what each vendor publishes. Whatever you use, put the account and the list in the firm's name.
How to tell if it's working
Count signed cases and booked calls that came after an email, not opens. Track three numbers:
- Replies and booked calls from each email in the series.
- Signed cases from people who were in the series, by lead source.
- Unsubscribes and spam complaints per send.
Our law firm marketing plan guide shows where this monthly count sits next to your other channels.
Questions people ask
Can lawyers send marketing emails?
Yes, with care. Federal law sets rules for commercial email, such as a postal address and a working opt-out.[1] Your state's lawyer advertising rules apply too. In California, Rule 7.2(c) requires the name and address of a responsible lawyer or firm.[2]
Can I email people who filled in a form on my website?
You can reply about their inquiry. Before you add them to a follow-up series, say on the form that you'll send follow-up emails. Federal law requires an opt-out in every marketing email, and you must honor it within 10 business days.[1]
How often should a law firm send a newsletter?
Monthly or quarterly, at a pace the firm can keep. One useful item per issue beats a long digest. Send it to past clients, referrers and people who signed up, not to everyone in the CRM.
Should a law firm buy an email list?
No. Bought lists bring spam complaints, which hurt delivery for every email the firm sends. Google asks senders to keep spam complaints below 0.3%.[3] Email people who contacted you, hired you or asked to hear from you.
Should law firm emails mention the case?
Keep case details out of marketing emails and subject lines. Some people share an inbox, and in family law the other party may read it. Ask how it's safe to contact the person and save the answer in your CRM.
Try this today: write your first three follow-up emails
You can do this in an hour without any new software.
- Pull the inquiries from the last 30 days that didn't hire you and aren't a conflict.
- Write down the two questions those people asked most on the phone.
- Draft three short emails: a thank-you with the next step, one that answers both questions, and an invitation to book a call.
- Add a clear unsubscribe line and your firm's name and address to each one.
Load them into your CRM as a series for new inquiries.
Sources
- Federal Trade Commission, "CAN-SPAM Act: A Compliance Guide for Business", ftc.gov. Checked October 26, 2026.
- State Bar of California, California Rules of Professional Conduct, Chapter 7 (Rules 7.1 to 7.6), calbar.ca.gov. Checked October 26, 2026.
- Google Workspace Admin Help, "Email sender guidelines", support.google.com/a/answer/81126. Checked October 26, 2026.