If someone is defaming you, infringing your trademark, copying your content, or harassing you, a cease and desist letter is often the first formal step. It puts the other side on notice, creates a paper trail, and frequently resolves the problem without a lawsuit. The trick is sending one that's specific enough to be taken seriously without overstating what you can actually back up in court.
Name exactly what the recipient is doing — the post, the product, the statement, the URL — and the legal theory: defamation, trademark or copyright infringement, breach of contract, harassment. Vague letters get ignored.
Tell them what you want them to stop, what you want them to take down or hand over, and when. A 7- to 14-day deadline is common. Open-ended "please stop" letters give the other side no reason to act.
Empty threats of "immediate litigation" hurt your credibility, and in some states overstating legal claims can itself be a tort. Only mention next steps you're actually prepared to take.
Certified mail with return receipt is the gold standard. Email is fine as a supplement. Keep a clean copy of the letter, the proof of delivery, and any reply — you'll need them if the dispute escalates.
A letter on a law firm's letterhead is taken much more seriously than a self-sent one, especially against businesses or repeat offenders. For high-stakes disputes — trademarks, defamation by a media outlet, ongoing harassment — paying a lawyer to draft and send the letter is usually worth it.
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NotALawyer.com provides general legal information, not legal advice.