. $80k rehab to bring this home into the modern age.

Some are going through renovation to make them look more modern and appealing. 

The "Shareholder Federal Reserve" is a lie; I think originating, at least in modern thought, from that trite book, Creature From Jekyl Island. 

Most modern PEI 4 and 5 tile doesn't snap well, and I mostly use that kind of tile.10.

If you want to sell your home and get more than you paid, then your going to need to do more to it than the way you received it, or at least properly maintain and modernize it.

First I look at the comps; not just on paper, I check them out and go inside if possible and determine the levels of quality and modernity for that neighborhood.  

I don't know if you've found the info you were looking for (post is a month old), but I found another post where Foremost insurance, American Modern Insurance Groups,  and National RE Insurance Group were mentioned several times.

Prediction: if the REI community doesn't start policing the activities of these types of Wholesalers, then some Regulator will eventually step in, draconian laws/regulations will be passed and these modern day aluminum siding salesman will be shut down, but so will a lot of honest folks trying to make a living and add value the right way.

BTW my roof was not penetrated by the installation, but they did get up in the attic and add extra reinforcement to the rafters/bracing to bring it up to modern code for the added weight (house is 1958 vintage).

We put a ton of value on the interior that you wouldn't see from a drive-by (Covid) so it didn't appraise for as much we anticipated (brand new heating system, all new hardwood floors throughout, brand new modern kitchen, etc.).