The levels and types of guaranty fees that the Federal Housing Finance Agency directs the GSEs to charge “have a direct and significant impact on the affordability of mortgage credit,” according to a coalition of industry groups that urged the FHFA to abandon planned fee hikes. In a letter to FHFA Director Mel Watt this week, the 10 trade groups – including the Mortgage Bankers Association and the National Association of Realtors – said they are “strongly against further, arbitrary increases in g-fees or loan-level price adjustments.”