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I've heard a lot of people have problems buying condos with FHA, and if you do go for it has to be an FHA approved condo. I've never heard anything about the 25% though. That might have been specific to your situation or to that condo.
As of now, the 3.5% still needs to be your own funds. You can, however, use it for down payment beyond the 3.5% or closing costs if you chose to do so as long as your lender accepts it.