@Joe Kelly - check the documents you signed. May times they make you sign a document with the offer that says you can't sell it with a certain amount of days
An fha buyer can not sign a purchase agreement with you within 90 days of Your purchase, period. If the can go conventional you have a shot.
Also, if this is a Fannie/Freddie REO, They impose a resale restriction (no sale within 90 days for more than 120% of your purchase price to anyone).