Glue down using an adhesive is always a good floors though again I prefer an adhesive with a hard set and not a pressure sensitive that can be affected by temperature and other factors.

But glue residue might be left behind.

We are interested in buying wholesale, lease-to-buy option, and long term for residual income.

From Canada I will try to put together a kind of an apartment Bible in the book form.This will be not hot air but all mathematical ratios starting with a mortgage, income,expenses, and residue or cash flow for the month and year end.The illustration will be all real and nothing with if's like there are so many programs available on the net.At he end the reader if followig all this will derive to his/hers net worth at the year end There will be nothing missing in order how to purchase, manage and dispose of such equity.Let me know if anything like this exists.

@Marc Faulkner  I am not licensed in any of the states you mentioned so do not take this as legal advice just ideas for you to pursue.The first avenue of defense I would pursue is negating the right of first refusal on the basis that is a contract of adhesion. 

I have a relative who just installed the Ultra version, and I am thinking of doing the same, so here is what I have found in my research so far:  Trafficmaster Allure has the grip strip (adhesive strips built in), and the video on Home Depot's website under that particular product shows that you have to use a leveler for any grout lines greater than 1/4" as the planks are flexible and the grout lines (or other defects) will become visible over time.

The glue-down product requires that the subfloor have a low moisture content so that the adhesive holds.

I looked at the house yesterday - the siding has been sprayed on, and it leaves white residue on fingertips when touched.Any advise on how to find out whether they used the right kind of paint so it doesn't peel by next summer.

Besides that, check the peel and stick re tile mats.It's like a sheet of butyl adhesive that you stick on the wall and then stick new tile to the mat without thinset. 

Several companies offer non-interlocking panels that basically just lay on the floor (generally called "Loose Lay", and they are apparently very heavy and therefore don't need adhesive or interlocking).