Actually there is a list of FHA approved propertie in Orange or Seminole Counties and also for different price ranges. An FHA approved Lender should already have access to this information.
If you are not on the approved list, it is easy to GET ON IT, so that may be what the problem is, but without having more information, I can't say.
The best thing to do is make sure you are dealing with a lender who is approved in the state of FL, and in Orange and Seminole Counties - since the price range is different for each, and if they are, in fact an approved Lender in that area, they should KNOW this information.
Are you perhaps dealing with a Lender or agent who is not familiar with Orange and Seminole County? Part of Winter Pk is in Orange, part in Seminole. Also, you should be dealing with an agent who knows this process and can refer you to a Lender who is also knowledgeable about FHA.
Hope this helps!