Contacting sellers- Driving for dollars

[Dalton Ward]

I've recently went around driving for dollars and have found around 10 distressed properties. I have looked up all the owners and have their mailing addresses but I really feel like a conversation over the phone is a much better way of getting the owner to respond positively. I've searched on BP for the best skip tracers and different methods of finding a sellers phone numbers but there have been few solid answers and most are outdated. Does anyone have experience with finding sellers contacts or know a reliable way to get that information? I'd be willing to pay but I also don't want to get ripped off by some bogus search site.