Definition: Mortgage 21 refers to the first mortgage in an active lien position on a property, which is usually owned by a bank or other lender. In this situation, the borrower is responsible for paying off the mortgage if the property is sold or otherwise disposed of. The term 'mortgage 21' was introduced in the United States and Canada during the late 20th century to refer to an active lien position on a home loan that has not been paid down. In this situation, the borrower may be required to continue paying off the mortgage if there are any deficiencies or non-payment history. It is important for homeowners to understand their rights when it comes to mortgages in order to avoid potential financial penalties and to ensure that they make timely payments on their loans. It is also advisable for borrowers to consult with a lender or attorney before signing an agreement or loan document to ensure that all necessary documents are included and that all terms and conditions of the loan are understood. Overall, the term 'mortgage 21' is a legal term that refers to an active lien position on a home loan that has not been paid down. It is important for homeowners to understand their rights when it comes to mortgages in order to avoid potential financial penalties and to ensure that they make timely payments on their loans.