The Commonwealth Group The Commonwealth Group

Beyond the Guide: A Deep Dive into Mortgage Underwriting - VantageScore 4.0 Is Open to Every Fannie Mae Lender

On September 9, 2026, Fannie Mae’s Lender Letter LL-2026-06 made VantageScore 4.0 available to every approved lender without prior approval. This post walks through what the letter allows and requires, from the one-model-per-loan rule and three-bureau ordering to Special Feature Code 067. It also covers how the representative score still works and the defects QC reviews should look for.

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The Commonwealth Group The Commonwealth Group

The Transformative Impact of AI on the Mortgage Industry

In the mortgage world, AI isn't just hype… it's a complete game-changer. Discover how innovations like automated appraisals and 24/7 virtual assistants are driving 30-50% cost savings, while navigating risks like data privacy leaks and miscalculations. As Fannie Mae surveys show 71% of lenders exploring GenAI, Commonwealth Group shares proven strategies for navigating regulations and scaling AI for fairer, faster homeownership. The revolution is here—adapt or get left behind.

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