is the legal process by which a mortgagee, or other lien holder, usually a lender, obtains a termination of a mortgagor's equitable right of redemption, either by court order or by operation of law (after following a specific statutory procedure).[clarification needed] Usually a lender obtains a security interest from a borrower who mortgages or pledges an asset like a house to secure the loan. If the borrower defaults and the lender tries to repossess the property, courts of equity can grant the borrower the equitable right of redemption if the borrower repays the debt. While this equitable right exists, it is a cloud on title and the lender cannot be sure that (s)he can successfully repossess the property. Therefore, through the process of foreclosure, the lender seeks to foreclose the equitable right of redemption and take both legal and equitable title to the property in fee simple. Other lien holders can also foreclose the owner's right of redemption for other debts, such as for overdue taxes, unpaid contractors' bills or overdue homeowners' association dues or assessments.

is a sale of real estate in which the proceeds from selling the property will fall short of the balance of debts secured by liens against the property and the property owner cannot afford to repay the liens full amounts, whereby the lien holders agree to release their lien on the real estate and accept less than the amount owed on the debt. Any unpaid balance owed to the creditors is known as a deficiency. Short sale agreements do not necessarily release borrowers from their obligations to repay any deficiencies of the loans, unless specifically agreed to between the parties.

Short Sale is often used as an alternative to foreclosure because it mitigates additional fees and costs to both the creditor and borrower. A short sale will often result in a negative credit report against the property owner, however it is less damaging than a foreclosure report.

is a class of property owned by a lender typically a bank, government agency, or government loan insurer, after an unsuccessful sale at a foreclosure auction. A foreclosing beneficiary will typically set the opening bid at a foreclosure auction for at least the outstanding loan amount. If there are no bidders that are interested, then the beneficiary will legally repossess the property. This is commonly the case when the amount owed on the home is higher than the current market value of this foreclosure property, such as with a high loan-to-value mortgage following a real estate bubble. As soon as the beneficiary repossesses the property it is listed on their books as REO and categorized as an asset (non-performing asset).