Principal:
Tight, interest rates are high, and there is a legal limit to the interest rate that can be charged on a mortgage. Buyers are prohibited from paying points on HUD or Veterans' Administration guaranteed loans (sellers can pay, however). On a conventional mortgage, points may be paid by either buyer or seller or split between them.

Acceleration Clause:
Condition in a mortgage that may require the balance of the loan to become due immediately, if regular mortgage payments are not made or for breach of other conditions of the mortgage.