### Question
How is the term mortgage defined?


### Answer
The term **mortgage** is defined in *12 U.S.C. § 1749aaa* as the following:

> a first mortgage on real estate in fee simple, or on the interest of either the lessor or lessee thereof (A) under a lease for not less than ninety-nine years which is renewable, or (B) under a lease having a period of not less than fifty years to run from the date the mortgage was executed

#### Citation:
  - *12 U.S.C. § 1749aaa*
  - Heading: **CHAPTER 13-NATIONAL HOUSING > SUBCHAPTER IXdashB-MORTGAGE INSURANCE FOR GROUP PRACTICE FACILITIES AND MEDICAL PRACTICE FACILITIES**

