finance
lien theory
Lien theory is the legal view, followed in many states, that a mortgage creates only a lien on the property as security for the debt, while the borrower keeps legal title. If the borrower defaults, the lender must typically go through foreclosure to have the property sold. It contrasts with title theory, under which the lender holds legal title until the loan is repaid, and intermediate theory, which blends the two.
- Exam tip
- Lien theory = borrower holds title; title theory = lender (or trustee) holds title. Which theory a state follows varies.
- Example
- In a lien-theory state, a homeowner with a $200,000 mortgage keeps legal title; the lender only has a lien it can enforce through foreclosure.
Related terms & state variants
Sources
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Last verified: 2026-10-23