Foreclosures is the legal proceeding in which a mortgagee, or other lienholder, usually a lender, obtains a court ordered termination of a mortgagor's equitable right of redemption. 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 owner the right of redemption if the borrower repays the debt. When this equitable right exists, the lender cannot be sure that it can successfully repossess the property, thus the lender seeks to foreclose the equitable right of redemption. Other lienholders can and do use foreclosure, such as for overdue taxes, unpaid contractors' bills or HOA fines.

The foreclosure process as applied to residential mortgage loans is a bank or other secured creditor selling or repossessing a parcel of real property (immovable property) after the owner has failed to comply with an agreement between the lender and borrower called a "mortgage" or "deed of trust". Commonly, the violation of the mortgage is a default in payment of a promissory note, secured by a lien on the property. When the process is complete, the lender can sell the property and keep the proceeds to pay off its mortgage and any legal costs, and it is typically said that "the lender has foreclosed its mortgage or lien". If the promissory note was made with a recourse clause then if the sale does not bring enough to pay the existing balance of principle and fees the mortgagee can file a claim for a deficiency judgement.

Types of foreclosure
The mortgage holder can usually initiate foreclosure at a time specified in the mortgage documents, typically some period of time after a default condition occurs. Within the United States and many other countries, several types of foreclosure exist. Two of them – namely, by judicial sale and by power of sale – are widely used, but other modes of foreclosure are also possible in a few states.

Foreclosure by judicial sale, more commonly known as Judicial Foreclosure, is available in every state and required in many, involves the sale of the mortgaged property under the supervision of a court, with the proceeds going first to satisfy the mortgage; then other lien holders; and, finally, the mortgagor/borrower if any proceeds are left. As with all other legal actions, all parties must be notified of the foreclosure, but notification requirements vary significantly from state to state. A judicial decision is announced after pleadings at a (usually short) hearing in a state or local court. In some fairly rare instances, foreclosures are filed in Federal courts.

Foreclosure by power of sale, which is also allowed by many states if a power of sale clause is included in the mortgage. This process involves the sale of the property by the mortgage holder without court supervision. It is generally more expedient than foreclosure by judicial sale. As in judicial sale, the mortgage holder and other lien holders are respectively first and second claimants to the proceeds from the sale.

Other types of foreclosure are considered minor because of their limited availability. Under strict foreclosure, which is available in a few states including Connecticut, New Hampshire and Vermont, suit is brought by the mortgagee and if successful, a court orders the defaulted mortgagee to pay the mortgage within a specified period of time. Should the mortgagor fail to do so, the mortgage holder gains the title to the property with no obligation to sell it. This type of foreclosure is generally available only when the property is under water. Historically, strict foreclosure was the original method of foreclosure.