The FHA could lose 7 percent, or $2.8 billion, of its current business if loan limits are lowered this year, according to a government analysis of the impact of new lower loan limits going into effect in the fall. Barring congressional action, the temporary FHA loan limits will revert by statute to the lower loan limits determined by the Housing and Economic Recovery Act for loans insured by the FHA on or after Oct. 1. The FHA single-family loan limit, which is tied to the conforming loan limit, continues to start at $271,050 in low-cost areas and goes as high as $729,750 in high-cost areas of the country. On Oct. 1, however...