A point is a percentage of the loan amount, or 1-point = 1% of the loan, so one point on a $100,000 loan is $1,000. Points are costs that need to be paid to a lender to get mortgage financing under specified terms. Discount points are fees used to lower the interest rate on a mortgage loan by paying some of this interest up-front. Lenders may refer to costs in terms of basic points in hundredths of a percent, 100 basis points = 1 point, or 1% of the loan amount.

Yes, if you plan to stay in the property for a least a few years. Paying discount points to lower the loan's interest rate is a good way to lower your required monthly loan payment, and possibly increase the loan amount that you can afford to borrow. However, if you plan to stay in the property for only a year or two, your monthly savings may not be enough to recoup the cost of the discount points that you paid up-front.

Mortgage rates can change from the day you apply for a loan to the day you close the transaction. If interest rates rise sharply during the application process it can increase the borrower’s mortgage payment unexpectedly. Therefore, a lender can allow the borrower to "lock-in" the loan’s interest rate guaranteeing that rate for a specified time period, often 30-60 days, sometimes for a fee.

An Appraisal is an estimate of a property's fair market value. It's a document generally required (depending on the loan program) by a lender before loan approval to ensure that the mortgage loan amount is not more than the value of the property. The Appraisal is performed by an "Appraiser" typically a state-licensed professional who is trained to render expert opinions concerning property values, its location, amenities, and physical conditions.