Who to send Yellow Letters to?

[Victor Barboza]

I am new to Wholesaling, and I still have tons of questions. But I figured the best way of fully learning is to start. How do you know who to send Yellow Letters to? I know you can search up tax delinquent properties, but is there any other way? Just because most of those sites are expensive, what is your best way of finding motivated sellers using the Yellow Letters?

Also, how would you know the name of the homeowner to put on the Yellow Letter?