Rooftop decks/common areas are fairly common for the infill stuff I see.  

@Laura Blair How common is it for a municipality to allow for a shipping container home or tiny home?

I don't know any good search engines and my agent says it's not common to buy duplexes and triplexes.

If they don’t they will likely be no better or worst than a common lease tenant , but Unfortunately they may less concerned in paying monthly rent as they have both the law and the preparedness of knowing they were going to move , it’s like they have nothing to loose by not paying and than moving when they are ready.

Delayed closings and price reductions are very common over the last 2 weeks.

Either, way yes this is a very common scenario.

First, there is a reason "Pro" Investors commonly speak of there extensive use of P.M.

Price cuts are becoming more common.

Seriously, on average, he has a closing everyday, commonly two, not to mention all the showings and paperwork but is now just sitting at home.This lack of activity does not appear to have affected prices yet.

In general, 3-5 or under could be a simple Joint-Venture or Tenant-In-Common arrangement.