Looking for options to contact a homowner

[Aaron Garbade]

I have found a duplex that is a perfect brrrrr candidate! My first move was to send a mailer with a handwritten note to the owner's address that I extracted from the GIS maps which aligned with his listed address on a skiptrace service, I called every number on the skiptrace results as well as email addresses but no success. I know that there have to be more options but i do not know what they are!