PulteGroup Inc, the No.3 U.S. homebuilder, reported a 23 percent fall in quarterly profit as it sold fewer homes and set aside funds to cover litigation costs following a recent unfavorable verdict in a contract dispute. PulteGroup’s overall home sales fell to 4,356 units in the third quarter from 4,646 a year earlier. PulteGroup said its expenses included $20 million for litigation-related reserves.