resetting a 2012 Mac to factory settings without ID or password
I purchased a 2012 desktop Mac at an auction of the contents of a home of a woman who died. When i turn it on her name comes up and asks for her password. She is deceased and I cannot contact anyone from her family. I have a reciept of purchase from the auction company and I found a copy of her obituary in a local newspaper. I would like to erase the contents and reset it to factory standards but cannot log on. Please help.
Thank you!
MacBook Pro 14″, macOS 15.0