I am sorry to be a little negative with my response - but I get calls all the time from amateurs who fancy themselves as real estate investors because they took a weekend seminar - many of them are just trying to pull off a CON due to really bad information they got from "Know Nothing Real Estate Promoters"!

Since it's listed by Redfin, I don't see any reason why they wouldn't cross promote it to our agents as well.

You can only buy on cash, terms, or conditions, don't try to hope for the best and expect the best because you will get burned every time. 

I use it like a sweep account and pair it up with credit cards with promotion balance transfers.Here is what i did: I needed 50K down on a property i used 25K cash and 25K in the HELOC.

Shoot if your money is burning a hole in your pocket, became a private money lender to people on here. 

Since you already discussed it with him, I would say you could list it online/MLS FSBO with 3% buyers commission (in a hot market that is probably enough for a sale) but would probably stop short of actually calling other agents to promote it that way.

Wasting time will lead you to getting burned out. 

If many have been burned on them, how do you avoid it? 

- it was one of the promotional offers where you pay a minimum/possibly a small % a "points" - and then minimum monthly payment but the APR was 0% for over a year.   

He has managed to burn up the past 4 months making changes, blaming the city, and filing items incorrectly.