Finding Phone Numbers for Follow-up Calls?

Hi all! I am somewhat new to buying distressed properties, having done two so far. I target Lis Pendens and Foreclosures in my area, mailing out cards and also hand delivering same and knocking on doors. I’m trying to follow-up via phone. However, using about a dozen free online websites, I’m trying to locate phone numbers for the property owner about 50% of the time.

How do those using a similar marketing method get your phone numbers for follow-up calls? Is there any pay service that you recommend that is worthwhile? Any that allow unlimied access for a monthly or yearly fee?

Thanks, and good luck to all!

what method did you use to locate the tw0 you finished?

How did you negotiate with the seller and what was their situation?

Curious in Cali. 8)