...contact an attorney, familiar with GA labor law, first. This clause may be over broad in duration, scope, vesting, or other issues.
\r\n\r\nGiven you're looking at a 24 month committment on the part of yourself and your family, I'd strongly recommend a review. Period. Should be available for a few hundred bucks.
\r\n\r\nI'd look at the possibility of negotiating 24 months to 12 (or 18), or pro-rating the relo on a monthly, quarteryly, or annual basis.
\r\n\r\nIn fact, I'd look very strongly into the pro-rata option, on a monthly or quarterly basis. As things stand, your employer will have a large firing bonus over your head at 24 months minus one day. I would not want to work under those terms.
\r\n\r\nIANAL, TINLA, YADA.