Respond to a Cease-and-Desist Letter | E-Commerce Sellers

ZYL Law Firm answers U.S. cease-and-desist and demand letters for cross-border e-commerce sellers on patent, trademark, and copyright claims. A $250 written triage in two business days assesses whether the asserted right is valid and owned by the sender, whether your product is actually covered, and your real exposure. Our professional fees for the next stage are: Response from $800; settlement agreement from $1,200. We do not guarantee that a sender will withdraw or settle on particular terms, and litigation is quoted separately.

Reviewed by Yaling Zhou, Attorney (CT, NY) · Rules reviewed: 2026-10-18

What we check in the letter

Who is the sender?A brand, its law firm, or an enforcement vendor — and whether the sender actually owns the right claimed. We verify against USPTO and Copyright Office records.
Which right is asserted?A registered trademark, an issued patent, or a copyright. Letters that blend all three are common; each needs a separate answer.
What is demanded?Stop selling, destroy inventory, disclose sales, pay a sum. Some demands are reasonable, some are negotiable, and some are not supported by the law.
How real is the threat?Whether the sender has sued sellers before, whether a Schedule A case is likely, and what remedies the right could support.

Response options

Reject with reasonsWhere the right is invalid, not owned by the sender, or does not cover your product, a reasoned letter often ends the matter.

Limited complianceChange a title, remove an image, or retire a SKU without admitting infringement or paying damages.

Negotiated settlementPayment and terms in a written agreement with a release, a non-assertion commitment, and a retraction of any platform complaints.

Prepare for escalationWhere suit is likely, preserving records and assessing defenses before the complaint arrives saves time and money.

Before you reply yourself

Do not admit infringement.An apology that concedes copying is evidence of liability and can be cited on willfulness.
Do not pay without a written agreement.A payment without a release does not stop the sender, or another rights owner, from suing later.
Do not ignore it entirely.Silence can lead to marketplace complaints or a lawsuit with a TRO, which is far more expensive to resolve.
Preserve your records.Keep sales data, supplier invoices, and design files. Deleting records after notice can create separate problems.

How we handle a demand letter

TriageLetter, rights asserted, accused products, and your sales footprint reviewed. Written answer in 2 business days.
StrategyReject, comply in part, negotiate, or prepare for suit — with a fixed quote for the next stage.
Response letterWe write to the sender or its counsel and handle all follow-up correspondence.
SettlementWe negotiate and draft or review the agreement so that it ends the dispute and any related platform complaints.

Fees

Service	Professional fee	Includes	Not included
Infringement notice triage Copyright, trademark, or patent complaint on any marketplace	$250	One notice (up to 3 ASINs or listings); rights and ownership check; written memo with next steps within 2 business days. Credited in full if you engage us within 14 days.	Formal response documents
Cease-and-desist letter response	Response from $800; settlement agreement from $1,200	Risk assessment, response letter, settlement negotiation and drafting.	Litigation
Retraction request / counsel-to-counsel letter	$600	Letter to the complainant or its counsel, retraction request, and one round of follow-up.	Settlement agreement drafting

If the sender has already filed a Schedule A lawsuit, see Schedule A / TRO defense. For a patent-based letter, a patent litigation risk report may be the right next step.

Frequently asked questions

Do I have to meet the deadline in a cease-and-desist letter?

The deadline is set by the sender, not by a court. Missing it does not by itself create liability, but ignoring the letter can lead to a platform complaint or a lawsuit. Get the letter reviewed before the deadline.

Is a cease-and-desist letter the same as being sued?

No. A lawsuit is filed in court and served on you. A letter is a demand. It often precedes a lawsuit, so it should be taken seriously.

Should I just stop selling and stay silent?

Sometimes stopping sales is sensible, but silence leaves past sales unresolved. A short response can close the matter on better terms.

Can you negotiate the amount demanded?

Usually. Demands often exceed what the right and your sales could support. Settlement terms should include a release and a retraction of related complaints.

Can you guarantee the sender will drop the claim?

No. We commit to a candid assessment, a clear strategy, and a defined fee for each stage.

Primary sources

Platform rules, deposits, and fees change; confirm against your notice and the current platform rules before acting.

Attorney Advertising. This page is general information, not legal advice, and does not create an attorney–client relationship. Listed amounts are professional fees only and exclude government fees, APEX deposits, court costs, and other third-party charges; the written quote controls. No lawyer can guarantee how a platform, evaluator, or court will decide, and prior results do not guarantee a similar outcome. Engagement is subject to a conflict check. Federal court matters are handled by counsel admitted to the relevant court, with local counsel where required.

Send the letter you received

Forward the cease-and-desist letter, the accused product links, and your sales period to ip@zyllaw.com. We confirm the conflict check and the triage engagement before any work begins.

Start intake Email ip@zyllaw.com