40-year-old Arturo Ross Sr. of Olean broke into an Olean building on August 3.
19-year-old Alexander Hope of Friendship broke into a Portville building on June 9 and stole more than $50,000 worth of property.
Both men will be sentenced on February 19.
31-year-old Angel Ocasio of Dunkirk broke into a Town of Dayton building on January 5. He will be sentenced on March 18. His co-defendant Jose Morales will be sentenced March 11.