Defending American Taxpayers From Abusive Government Takings Act of 2013 - Amends the Federal National Mortgage Association Charter Act, the Federal Home Loan Mortgage Corporation Act, the National Housing Act, and the Housing Act of 1949, respectively, to prohibit the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac) from purchasing, the Federal Housing Authority (FHA) from insuring, and the Department of Agriculture from newly guaranteeing, making, or insuring any mortgage secured by a structure or dwelling unit located in a county in which the state, including an agency or local government, has used the power of eminent domain to take a residential mortgage.