A second mortgage is a recorded real-property lien junior to the senior mortgage . Mezzanine is a loan to the SPE owner secured by a UCC pledge of the equity, not by a lien on the property. Most institutional senior lenders forbid second mortgages but permit mezz under an intercreditor agreement .
Why do senior lenders forbid second mortgages?
A second-position lien on the real estate creates direct title competition: a foreclosure by the second-lien holder can complicate the senior's remedies, redemption rights, and bankruptcy treatment. CMBS pooling and servicing agreements universally prohibit junior real-property liens on the collateral, and most balance-sheet senior loan documents do as well.
Why is mezzanine acceptable?
Mezz attaches above the property, at the equity-ownership level, so a mezz foreclosure changes ownership of the SPE without disturbing the mortgage or the senior lender's position. The senior consents to mezz through an intercreditor agreement that defines cure rights, replacement-guarantor mechanics, and standstill periods, preserving the senior's collateral while permitting the gap fill.
Sources
- Quarterly Survey of Commercial/Multifamily Mortgage Bankers Originations · Mortgage Bankers Association · 2026-Q1