Michelena, accepting a petition of Alferez Juan Josh Moreno, delivered seven grazing lands (including Cara Del Rio, Santa Cruz and San Marcos) to the garrison of the Presidio of Santa Fe, so that they would have a place where their horses could graze. After the lands were granted, the shepherds who brought their cattle and flocks to these areas were expelled for good. They were forced to leave the lands in fifty days. They would be fined fifty pesos if they did not obey.[2]
Toward the end of his term of appointment, in 1738, Olavide y Michelena traveled to Albuquerque. There, he gave up a piece of land to Nicolas Duran De Chavez, which he could use
of temporarily way until a new governor was appointed to New Mexico to officially grant the request. The family of Duran was large and had few resources. He had nine children and a livestock from cows and sheep that had no grazing land.[3][note 1]
On 8 September 1749, Olavide y Michelina was appointed governor of the Mariana Islands.[1] As the new governor, he promoted the settlement of voluntary families on the Guam island, allowing development. The law was based on the law of the Spanish Crown. At least 6 families came to the islands.[4] Olavide y Michelena ended his term as Governor on 6 November 1756. Andrés del Barrio y Rábago replaced him. He was appointed Governor of the Mariana Islands a second time on 9 June 1768, ending this term on 15 September 1771. Mariano Tobias was appointed the next Governor of the islands.[1]