 In 1837, de Haro bought the Rancho Laguna de la Merced, which included Lake Merced and portions of northern San Mateo County, from the grantee José Antonio Galindo.And in strange turn of events, in 1838, Alcalde de Haro issued an arrest warrant for Jose Antonio Galindo for the murder of José Doroteo Peralta (1810–1838).De Haro served again as the fifth Alcalde from 1838-1839.