How to locate absentee owners?

[Latriece Powell]

Hello BP family. So i'm two weeks in to "taking action". I am able to locate the type of properties i would like to flip. I am running into an issue with how to locate absentee owners. I am able to get the parcel information online so i am able to find out my owners name. I just don't know where to begin to locate a number; e-mail address or something to contact them. Should i mail them a "yellow letter" using the address on the properties details? My brain is telling me this would be a dead end reach as they are not located at the property. I'm lost can someone help to point me in the right direction. Thank you