Finding an owner of a vacant house

[Jessie Lozano]

New investor here looking for my first deal. I've spotted a potential single family BRRR in my neighborhood. The house looks to be vacant (grass grown over, gutters in disrepair, no answer at the door and other signs). I've looked at my county's CAD and found a name of the owner. I plan on sending a letter to the address stating my interest of a potential deal. What other ways can I go about tracking down the owner?