Yep, there are several postcard companies that have related selling companies and closing companies. It's quite a racket.
When I bought my first week from VINinc 4 years ago, way before TUG, I had no idea, but now I know they were selling for Timeshare Relief. You can tell by the escrow number, which is alway TR, and they always use Timeshare Closing Services.
Title Outlet is closing the deals for Jonathan Gibbs' company, We Collect Timeshares, which Ochoa is peddling on eBay. His company has a very generic name, but I cannot recall it right now.
There are some others, but I am not sure who the postcard sister company is for all of them. I just know that Vacation Solutions was having some problems last year, but they seem to be back in full swing. Vacation Solutions used to use Timeshare Transfer, but then they decided it was just too much money to just give to someone else for the closing, so they started closing the deals themselves. I am not sure they are doing things legally, to be honest, but who am I to question them.
Then there is Timeshare Rescue, and I have no idea who closes their deals, but they are in Colorado, too, just like Vacation Solutions.
There are lots more, so many I cannot keep up.