Definition
Full Interest Assumption—when a buyer takes over the seller's existing mortgage with full lender approval, including qualifying based on creditworthiness. The respectful way to inherit someone else's loan terms.
Example Usage
He negotiated an FIA to assume the seller's 3% interest rate mortgage rather than getting a new loan at 7%.
Origin
Mortgage assumption terminology from 1970s-1980s when assumable loans were common
Fun Fact
Most conventional loans after 1989 contain due-on-sale clauses preventing assumptions, making FIAs rare outside of FHA and VA loans.
Source: Federal Housing Administration loan assumption guidelines
Related Terms
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