Responsible Homeowner Relief Act of 2010 - Amends the Internal Revenue Code to allow an individual taxpayer a deduction from gross income for loss from the sale or exchange of a principal residence in which such taxpayer resided for at least two years during the five-year period prior to the sale. Limits the aggregate amount of such deduction to $9,000, allowable in three annual installments of $3,000. Terminates such deduction after 2012.
Requires the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac) to waive any short sale waiting period requirement for certain mortgagors who refinance their mortgage in a short sale. Terminates such waiver authority on January 1, 2013.