manufactured homes
From Mobile Home to Real Property: Why Engineer Letters Are Critical for Manufactured Home Loans
What is an engineer letter for a manufactured home?
An engineer letter (sometimes called a foundation certification or retrofit letter) is a document signed and sealed by a licensed professional engineer verifying that:
- The foundation meets HUD guidelines
- Anchoring complies with loan requirements
- The structure is properly affixed to the land
This document transforms the manufactured home into real property for lender purposes — which is the difference between a 30-year mortgage and a chattel loan.
Why lenders need it
Underwriters need confirmation that:
- The home is permanently attached to the foundation
- The home is not classified as personal property
- The foundation and anchoring meet location-specific code requirements
Without that confirmation, the loan doesn’t close.
What happens without one?
- Loans cannot close
- The property may fail FHA or VA qualification
- Buyers are forced into high-interest chattel loans
- The home may fail a code inspection at resale
How EngineerLetters.co helps
We provide 24–48 hour turnaround on compliant letters across most states. Every letter is sealed by a licensed engineer and written to satisfy the specific lender, loan product, and jurisdiction involved.
Pro tip: letters = real property
A certified letter unlocks:
- Lower interest rates
- 30-year fixed mortgages
- Refinance options
- Appraisal eligibility
Common questions from underwriters
- Homes built after June 15, 1976 typically require certification for FHA, VA, and conventional financing.
- Relocated homes may require additional inspection.
- Foundation certification is required regardless of whether utilities are permanently connected.
Ready to get a letter?
Send us your project details and photos. We’ll confirm fee, scope, and turnaround within hours.
TL;DR for lenders
A manufactured home without a PE-sealed foundation certification is personal property, not real property. We fix that — fast — so the loan can close.