Now, if you were to take a tape measure and measure vertically from the floor to the ceiling at various points within that space, some areas close to the center will approach your 7'-6" height, while other areas out toward the exterior walls will be much less. 

I understand that you've asked what you believe to be an honest question, but the fact you've asked it sheds light on a gray area you're wandering around in looking for a plumb-line by which you can measure whether something is ethical or not, and you’ve come up empty.  

I'll try to make it short.That is 15 yr timeframe measured daily.

I normally screen very stringently.

Rent to Own/Lease options in Texas longer than 180 days have such stringent guidelines that no one does them legally.

That's still dozens of clients.I'm not sure how you can get a good measure by asking "how many of you qualify."

I see sellers fluffing the books with weak tenants to sell at an inflated price and then the buyer ends up with a headache.I think previous suggestions are correct - let tenants know that new management will be much more stringent on collections, and also try to raise rents if possible.

I also recommend "What Every Real Estate Investor Needs to Know About Cash Flow... and 36 Other Key Financial Measures" for numbers related terms.Good Luck.

You may have mello Roos or some bond measure but the basic is 1%of the purchase price.

.- Tape measure- Flash light- Portable charging bank  -Portable speaker-Nice clip board/ Padfolio/ note pads