I have a 10x8 shed that I use exclusively to store real estate materials and supplies.

The LTR passive losses are reported on Schedule E and are not applicable to W2 income as I am not a real estate professional and earned above a certain threshold. 

I furnished 2 STRs for that amount, just go to either high-end thrift stores or a lower-end antique store....you'd be surprised at how little you can pay for solid wood furniture...

Maybe if you had a good, secure location to store things you could pre-order stuff you think you might need for your next project(s) and stockpile it.

Would you think a store that had a small step at the front would be compliant if they had a small metal portable ramp they could lay down over the stairs in case someone in a wheelchair were to come?

As always, this can be mitigated with proper screening of applicants by verifying rental history and contacting prior landlords about the prospective tenant's past.

Unkempt lawns, trashy or broken down vehicles, mattresses and trash on empty lots, boarded up houses, bars on windows, dealers and hookers on the corners, the lack of stores or gas stations, occupied properties are dilapidated, etc.Or when Google maps shows stuff like this:

Clothing- buy at the second hand store.  

Each unused lock/deadbolt gets stored in a freezer bag with date and unit the lock was last used on -- so we do not inadvertently place the same lock on the same unit.   

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.