Acceleration
The right of the mortgagee (lender) to demand the immediate repayment of the mortgage loan balance upon the default of the mortgagor (borrower), or by using the right vested in the Due-on-Sale Clause.

Adjustable rate mortgage (ARM)
Is a mortgage in which the interest rate is adjusted periodically based on a preselected index. Also sometimes known as the re-negotiable rate mortgage, the variable rate mortgage or the Canadian rollover mortgage.

Adjustment interval
On an adjustable rate mortgage, the time between changes in the interest rate and/or monthly payment, typically one, three or five years, depending on the index.

Amortization
Means loan payment by equal periodic payment calculated to pay off the debt at the end of a fixed period, including accrued interest on the outstanding balance.

Annual percentage rate (A.P.R.)
Is a interest rate reflecting the cost of a mortgage as a yearly rate. This rate is likely to be higher than the stated note rate or advertised rate on the mortgage, because it takes into account point and other credit cost. The APR allows home buyers to compare different types of mortgages based on the annual cost for each loan.

Appraisal
An estimate of the value of property, made by a qualified professional called an "appraiser".

Assessment
A local tax levied against a property for a specific purpose, such as a sewer or street lights.

Assumption
The agreement between buyer and seller where the buyer takes over the payments on an existing mortgage from the seller. Assuming a loan can usually save the buyer money since this is an existing mortgage debt, unlike a new mortgage where closing cost and new, probably higher, market-rate interest charges will apply.