There are certain FHA guidelines that homes have to meet for you to be able to get an FHA Loan. The appraiser will point these out in his appraisal that he provides to the bank, you might want to call a local appraiser and see if they can guide you as to what they look for in your area. Some general guidelines follow.
Conditions that will require automatic repair for existing properties:
* Inadequate access/egress from bedrooms to exterior of home
* Leaking or worn out roofs (if 3 or more layers of shingles on leaking or worn out roof, all existing shingles must be removed before re-roofing)
* Evidence of structural problems (such as foundation damage caused by excessive settlement)
* Defective paint surfaces in homes constructed pre-1978
* Defective exterior paint surfaces in home constructed post-1978 where the finish is otherwise unprotected.
In general - anything that makes the property unsafe or uninhabitable will be a problem.
These repairs can be a negotiating point in your sales price. However, if the seller is unable to budge and depending on what type of FHA loan you get an who your lender is, you can sometimes borrow over the purchase price to have these repairs completed. Look for USDA/Rural housing loans if you live in rural area.