It is in your best interest that you find a home within the parameters of FHA as these appraisers are much thorough in order to make sure you are getting a good home to help protect you and their interests.
Hope this helps. Best Wishes and Happy Holidays!
There could be a number of reasons for this.
1. An agent or seller may choose not to accept this type of financing on a home because they anticipate a problem with an FHA appraisal - they generally aren't as leanient as conventional appraisers.
2. Common Interest Communities (Condos - Cooperatives - townhouses) associations must be approved by FHA in order for them to lend money in that development. Spot approvals can and do happen all of them time though.
The best advice I can give you is to have your agent call the listing agent and ask them why they aren't accepting FHA financing - sometimes its just a mistake.