Also, if the listing agent is paying attention and sees the “and/or assigns” added to the buyer’s name, sometimes this will raise a red flag and they may not want to contract with you.Would you be interested in closing on this one yourself instead?

We used google voice but eventually got flagged/shut down for too many calls.

He also mentions in the listing no agents or wholesalers.Any red flags pop up for those with more experience doing fsbo?

It would be illegal and get flagged as unauthorized deleading (UD) and you would NEVER be able to get a lead cert, only a letter of environmental protection which states you performed UD, got caught, then had to pay a licensed deleader to come in and fix it.

They have zero credit, and a few statements they made during the showing raised some red flags to me. 

@Steve Tsadwa  I've used American Home Shield in the past and pretty happy with their service.Welcome to BP!

My only red flag to anything in this thread is the "realtor losing patience" part.

If there was a red flag, you'd have a professional in that trade come out and give you a quote.

Steve: when I need maintenance in markets where I have no contacts (i.e. friends), Angie's list, yelp and, where cost effective, American Home Shield.  

I see the logistics of getting to the property if needed as an obvious initial red flag.