You can weed them out till you find good ones, and when you do, then you offer a 6-12 month renewal.

Further reading, however, has led me to the notion that there are other ways to be a qualified business that are not immediately apparent, but those same sources do not get into the weeds of the law.

They made an error or are just confused, it weeds most of them out.

That is a quick way to weed out people. 

The next two were so far out in the weeds there was nothing for a Realtor to do anywhere in the process. 

Do you already have some kind of pre-screening questionnaire setup to weed out undesirable tenants?

Your question about hydrostatic pressure is getting into the weeds for sure...I would ask myself, does the potential water infiltration have the possibility to damage the unit and tenant property?  

He may leave all the unwanted items and never pay you.

In addition, what if I attract unwanted attention to the other parts of the property that I strongly suspect aren’t permitted?  

I weeded out so many bad candidates and eventually Zach came on.