My grandfather bought a church, too.
The church he attended built a new building several miles away. He didn't really think the new building was necessary, but he offered to donate toward the project if he could keep the old building which adjoined his farm. He rented it to the Baptists for a while; eventually it became an office for an auction company, then sold to a couple who made it a residence. The cemetery next to the building went with it, and the new owners tried to keep the relatives of the deceased from visiting the graves. And they prohibited new burials, even though the widow had bought the plot next to her husband and her name was already on the tombstone. The state eventually passed a law requiring owners of private cemeteries to provide reasonable public access.