As for how hard it is.. that goes without saying there is nothing tougher in the real estate game than this.. simply because you need to be proficient in all aspects  of the transaction.. so I guess you just have to decide which slice of the apple you want and how much capital you have to throw at it .. how much time you have and your sales and closings skills.. which again listening to the guys in the room these were no wallflowers..

I did it in my market- could not imagine starting any other way “alone.”not to get off the subject but this is why always cringe when I see these folks get on here and say I have no money no experience so I am going to wholesale  :)  not sure who feeds these folks these lines of BS  but cant think of a tougher thing to do.Granted there will be a few that can push through.. but not many like a burn out rate at 98%.... so same thing starting out doing deals I think like your saying PE partner is basically a must

It is even tougher to find a deal so good that you can make a profit on top of the profit the investor you sell to will  make. 

Environmental regulations are only going to get tougher going forward forcing oil heat out of favour in time. 

Wholesaling in-general is a little tougher in the current market cycle, but it can still be done.  

As far as the refi within 6 months goes, that will be tougher.

To piggy back on what Mike said, if this is an illegal 4 plex, section 8 will not cover a unit that is not registered with the tax assessor, so that will make renting the unit much tougher.  

I am thinking if these were owner occ though ( I mainly deal with non owner) and the new rules it could be tougher .so I would plan on paying them off.. and if they have not filed a default then you just learn the time lines in that state and you know worse case scenario when you need to pay them off.

Robust areas its much much tougher.

February 20, 2018, 4:04 PM CST Updated on February 20, 2018, 11:01 PM CST British Columbia announces new real estate speculator levy "Vancouver, one of the hottest housing markets in North America, is getting a little tougher for wealthy Chinese buyers."