Otherwise consult a Real Estate Attorney to get all necessary paperwork in order for your state and door knock or mail to the owners. 

You can also knock on doors, talk to the neighbors.  

I door knocked got phone numbers and I've worked my way through getting in touch with the bank.  

It may be super old school but when working on a small budget I would pick out the homes with the most equity and go knock on their door.

He immediately knocked on their door and NOBODY would answer him.

@Jose CorberaCouple good reads 9 Reasons You Couldn't Find A Buyer For Your Wholesale Deal Don't Start Wholesaling Until You Read This: Wholesale Advice from a Fix and Flipper How to Start Wholesaling: Getting Past The Education and Into the FieldUltimate Guide to wholesalinghttps://www.biggerpockets.com/renewsblog/2015/01/31/ultimate-beginners-guide-real-estate-wholesaling-2/Have a buddy who walks a targeted neighborhood door knocking on doors speaking to residents on behalf of the local politician.

Are they the numbers from the previous year when the owner lived there and was getting $1000+ knocked off via the homestead exemption, over 65 exemption, etc?

Start calling and knocking on doors.

There are some people who are knocking it out of the park with auctions, so I would reach out to them on BP and see if you can pick their brain! 

Jeff Beard, since this house has been completely renovated from the ground up, I'm not for foreseeing any costly maintenance issues for a few years (knocking on wood).