* Federal Housing Authority could deny claims: analyst
* Mortgage insurance agency under pressure from defaults
* Wells Fargo, JPMorgan and Bank of America could be hurt
* House prices could take “another leg down,” says Miller
Oct 3 (Reuters) – A federal housing insurance program may be forced to deny bank claims for money lost in home loan foreclosures, costing them another $13.5 billion in mortgage-related losses, according to a report on Monday from bank analyst Paul Miller of FBR Capital Markets.