If you enjoy history and fixing things, then it may be hard to drive by historic homes for sale without feeling the urge to buy one and fix it up.  Before you do, you need learn the three R's of fixing up historic homes and the differences between them. The three R's of fixing up historic homes are restoration, renovation and repair.  Some of the differences are minor, but they can make all the difference in cost, time and problems. Restoration "Restoration" literally means returning something to its original state.  Restoring historic homes for sale involve city and state programs.…