A warrantable condo is one that potential home buyers can finance and underwrite using a conventional mortgage. In order to do so, the condo must first meet certain minimum guidelines laid out by traditional mortgage investors like Freddie Mac and Fannie Mae. Non-warrantable condos are more difficult to buy and sell, as Freddie Mac and Fannie Mae have determined them to be too risky an acquisition, making them more difficult to acquire financing for. To obtain a non-warrantable condo, you may have to seek outside financial assistance beyond that which could typically be obtained through a conventional mortgage or traditional lender.