P
AI for Mortgage Underwriter
P
Pocket Guide to AI

© 2026 Pocket Guide to AI. All rights reserved.

  1. Home
  2. Mortgage Underwriter AI Guide
  3. How-To Guide: Build a Reusable Adverse Action Notice Library with Claude
1
of 5— Identify your top denial scenarios

What you'll accomplish

By the end of this guide, you'll have a complete library of ECOA/FCRA compliant adverse action notice templates — one for each major denial scenario — saved and ready to use. Instead of writing from scratch or re-prompting AI each time, you'll have 15-20 ready-made templates that take 3 minutes to customize per denial.

What you'll need

  • Claude account at {{tool:Claude.url}} (free tier works; {{tool:Claude.plan}} recommended for longer outputs)
  • A list of your most common denial reasons (gather from last 3 months of denials)
  • 60 minutes for the initial session
  • A shared folder (Google Drive, SharePoint) to store your library
  • Cost: Free (Claude free tier) or {{tool:Claude.price}}/month for Pro

How-To Guide: Build a Reusable Adverse Action Notice Library with Claude

Step 1: Identify your top denial scenarios

Before generating templates, make a list of the denial reasons you use most frequently. Common categories:

Credit:

  • Unsatisfactory credit history — derogatory account(s)
  • Excessive obligations in relation to income (high DTI)
  • Insufficient credit history / thin credit file
  • Prior bankruptcy/foreclosure/short sale — required waiting period not met

Income:

  • Unable to verify income / insufficient documentation
  • Income insufficient to support the requested loan amount
  • Inconsistent or declining income — self-employed borrower
  • Employment history insufficient (less than 2 years)

Property:

  • Unable to determine value — appraisal below purchase price
  • Property not eligible for requested loan type (condo, manufactured home)
  • Property condition not acceptable

Assets:

  • Insufficient verified funds for down payment and closing costs
  • Unable to verify source of funds

Other:

  • Loan-to-value ratio exceeds guideline maximum
  • Incomplete application — insufficient information provided

Write down 10-15 of your most common combinations.

Tools:Claude