No stone unturned in one easy to follow place.Well, based on what you're looking for I've mentor more than a few from here'. 

Having a good agent that has a proven track record with Condotels is going to be very important for you and should be able to help with many of these questions. 

From the Owner's end, as far as selling their Zombie property would you advice the Owner/Seller to contact the lender and try to get a payoff/deed in leiu of foreclosure, etc. or just follow through with a Quit Claim Deed with the Buyer and have him/her contact the lender...for a response within 28 days for so like you mentioned?

If I were a tenant I would feel disrespected and insulted if I was law abiding and following the rules and someone rolled up in my home with a weapon.

The rules are not hard to follow and of course you'll need to plan for RMD's unless Roth but if you start a few years out this isn't tough.  

They paid about 90% of their first months rent after my ownership (after a lot of follow up on my point) and never paid another cent.

Phone call with email follow up or email so there's a paper trail.

If someone has an Instagram account and doesn't have a picture, will you follow them if they have no photos or bio?

Once lenders see that you’ve proven yourself, it can open up more favorable terms, and some might even go as high as 90% or more on the purchase. 

I’d appreciate some guidance on a few matters regarding my investment properties.I recently purchased several properties in the following locations:•Ft.