We're going to talk about all the types of clauses that you need to know for the real estate exam. An acceleration clause in a mortgage or trust deed stipulates that the entire debt is due immediately, if the borrower defaults under the terms of the contract.A real estate contract is a legally binding agreement between a buyer and a seller that outlines the terms and conditions of a real estate transaction. No-contest clauses are designed to prevent relatives from bringing a will or trust contest after a decedent's death. There are two types of clause: main and subordinate. A main clause normally makes sense on its own, and often functions as a complete sentence in its own right. This booklet explains many of these laws you need to know and provides resources where you can find more information about landlord and tenant issues. Rent Regulated Housing. These four primary clauses are an acceleration clause, a dueonsale clause, a prepayment penalty clause and a release clause. The value of working with the Spodek Law Group is that we treat each and every client like a member of our family.