How it works.
Three steps. Five minutes. One well-drafted letter.
Upload or paste your document.
Take a photo of the letter you received (denial, bill, notice, ticket) or paste the text directly. Accepted formats: JPEG, PNG, PDF, or plain text. Max file size: 25 MB.
Our AI reads the document and extracts the key information: who sent it, what it says, what the specific denial reason or claim number is. You'll see what it extracted and can correct anything before proceeding.
Answer a few questions.
Each vertical has a short set of questions — usually 5–8. Your name and address (for the letter), any relevant context, what outcome you want, whether you agree or disagree with what they're claiming.
The questions are different for each situation. Insurance appeals ask about your insurer and whether the plan is employer-sponsored. IRS responses ask which notice you received and whether you agree with the proposed change. We ask the minimum we need to write a specific, grounded letter.
Get your free preview.
In 10–30 seconds, you get a substantial preview — opening paragraphs, tone, statute citations, and the letter's full structure — so you can judge the quality before paying. It's watermarked across the page so you know it's a preview.
The full letter unlocks after payment. The preview shows you enough to decide — your name, citation framework, opening argument, salutation. Pay only if you like what you see.
Unlock and send.
$9.99–$49.99 depending on the vertical. That gets you the clean, unwatermarked letter as a PDF and DOCX. Download, print, and mail it yourself — or bundle USPS Certified mailing in the same checkout (5% off).
We also email you a copy automatically. You can return to your letter later from the download page using the link in your email.
We mail it for you.
Click one button and we handle printing, addressing, postage, and USPS drop — first-class or certified with tracking. No printer, no envelope hunt, no post office trip. For disputes with deadlines (insurance appeals, IRS responses, Fair Debt Collection Practices Act (FDCPA) demands), certified mail with tracking creates a legal record of timely mailing.
Three tiers: First-Class ($7.99, 3–5 days), Certified Mail ($19.99, 5–7 days, tracking + signature), Certified + Return Receipt ($24.99, includes physical signed receipt mailed back to you). Learn more about the mailing service →
What the AI does and doesn't do.
The AI does:
- ✓ Read and extract information from your document
- ✓ Identify the relevant statutes and regulations
- ✓ Write a specific, professional response in the correct format
- ✓ Cite real, verifiable law (not fabricated citations)
- ✓ Frame your argument in the language that gets taken seriously
The AI doesn't:
- ✗ Review your case for legal merit or strategy
- ✗ Give legal advice or represent you
- ✗ Guarantee any specific outcome
- ✗ Make up facts you didn't provide
- ✗ Know things about your situation that you didn't tell it
How we keep your data safe.
- → All uploads encrypted in transit and at rest
- → Documents auto-deleted after 30 days
- → We never train AI on your data
- → No advertising trackers or cross-site tracking (Plausible only, self-hosted)
- → Payment processed by Stripe — we never see your card number
When you should get a real attorney instead.
We'll always tell you if your situation is beyond what FightThis handles well. Specifically:
- → The dispute involves more than $10,000 and you're facing litigation
- → You're facing potential criminal liability (tax fraud, etc.)
- → Immigration status is involved
- → You've already received a final court order
- → The other side has legal counsel and you're negotiating
Many state bars offer low-cost lawyer referral services. Find legal help near you →