The last of about 75 Americans caught in a property dispute in a Baja California seaside community south of Ensenada are expected to abandon their houses today, in what is believed to be Mexico's largest eviction of U.S. homeowners on record, with about $25 million worth of property involved. In August, about 200 residents of the 250-acre community, known as Punta Banda, were ordered off the land by today. The evictions capped a battle during which landowners successfully challenged 1973 government land grants to peasant groups, who developed the property. The Mexican Supreme Court recently ruled the land grants invalid. Most of the homes, which were built by the U.S. residents, will be bulldozed and the site redeveloped, according to a lawyer representing one of the original landowners.