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Lawyers mail demand letters, settlement correspondence, client engagement letters, and court filings: even though email exists. Paper creates a court-admissible record, some courts and statutes still require it, clients expect formal documents on paper, and contract law's "mailbox rule" can make a mailing date legally decisive. In a law firm, mail isn't nostalgia; it's infrastructure.
This is general information, not legal advice.
| Letter type | Why it goes by mail |
|---|---|
| Demand letters | The mailed original with a delivery record proves the other side was warned: the foundation of later claims. |
| Settlement offers and counteroffers | Dated, trackable offers matter for cost awards and bad-faith arguments if talks fail. |
| Engagement and fee letters | Clients sign and return them; both sides keep a physical record of the terms. |
| Client updates and closing documents | Formality and client expectation: some clients want the file on paper. |
| Court filings and service copies | Many courts still require paper copies or courtesy copies for judges; some service rules name mail. |
Because "sent" is not the same as "proved." An email can be spam-filtered, deleted, or disputed. A certified letter's delivery record is a third-party fact: the postal service says it arrived, and courts accept that. Several rules still name mail explicitly: when a statute or a court rule says "certified mail," an email doesn't satisfy it no matter how good the read receipt looks. And the mailbox rule in contract law makes timing turn on mailing: an acceptance is generally effective when mailed, not when received, so the postmark date can decide whether a contract was formed.
Lawyers live on the proof ladder. Ordinary correspondence goes regular mail. Anything that starts a clock, satisfies a rule, or may end up in front of a judge goes certified in the US or registered in Canada: the tracking number and signature record are what get stapled to the affidavit or filed as the exhibit. A refused certified letter leaves a recorded refusal, which many courts treat as notice given, so even a dodge by the recipient doesn't waste the mailing.
The firm's habits scale down nicely. Keep a copy of every consequential letter you send. Use tracked mail for anything with a deadline or a dispute behind it. Keep the letter and its mailing receipt together as one file: that's the habit that makes the whole system work when you need it. And when a contract you're party to has a notice clause, follow it the way a firm would: the named method, the named address, on time. That's the part of lawyerly mailing that protects ordinary people most.
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