Hi there!

But the other options are Hard Money Lender, second on a house, personal line of credit, private money from an investor, or PM from a family/friend.

I don't know any hard and fast metrics to check, but just being a member of the local housing pages on FB will tell you that people are clambering to find rooms for rent. 

It could be the first, the last, or any of them in between. 

There are no simple instructions on how to simply skip trace someone's info.

Or is there something else that I am missing? 

Any guidance or referrals to professionals you trust would be greatly appreciated!

.: The hate for wholesalers on BiggerPockets is insane when there are still genuine, good wholesalers out there who aren’t selling a dream.There are good wholesalers out there, but unfortunately, there are also a lot who have no idea what they're doing and some that are just scammers. 

There are many options, now.

Not sure if they called off the sign, or if they still have the listing up on their phone and find the number to call from there.