The list of covered changes is long, and lawmakers didn't stop at mortgages
Missouri lawmakers passed a bill telling mortgage servicers: modify a loan and it keeps its lien priority, even if the change goes unrecorded.
That protection lives inside a broader real estate bill, Senate Substitute for House Bill 2636, sponsored by Representative Bill Owen and Representative Wendy Hausman. The Missouri General Assembly agreed on the final text during its 2026 session. Tucked inside is the Uniform Mortgage Modification Act, and if you work in servicing or loss mitigation, that's the section to read.
The idea is simple. When a lender or servicer changes the terms of a mortgage, the change does not push the mortgage out of its priority spot. The act says the mortgage keeps securing the loan as modified, its priority stays put, and it stays put whether or not the change is recorded in the public land records. The modification also is not treated as a novation, so the old loan is not erased and swapped for a new one.
The act defines "mortgage" broadly, covering deeds of trust, trust deeds, security deeds, indentures, and deeds to secure debt. The protection is bounded, though. It applies to a listed set of changes: extending the maturity date, cutting the interest rate, changing the rate structure or index in specified ways that don't raise the rate, capitalizing unpaid interest, forgiving or reducing principal or interest, adjusting escrow or reserve requirements, adjusting insurance requirements, changing a condition for advancing funds, changing a financial covenant, and adjusting a payment amount or schedule that follows from any of those.
Step outside that list and the protection drops away. Releasing or adding property, releasing or replacing an obligor, or assigning the loan to another party are carved out. The act also leaves recording statutes, limitation periods, the statute of frauds, and tax-lien priority alone.
There's a useful wrinkle for existing books. The rules apply to modifications made on or after the effective date no matter when the loan was written, so older mortgages already in a portfolio qualify.
The rest of HB 2636 lands mainly on real estate and insurance. It sets disclosure rules for residential property "wholesalers," creates the Missouri Residential Sale Leaseback Protection Act with civil penalties up to $10,000 per violation, and bars insureds from assigning their property-insurance benefits.
One note on timing. The document is the version the legislature passed. It shows no gubernatorial action and no effective date, so confirm when the modification rules take effect before building them into your servicing process.
