In our leases, we do not allow flags, or sheets, to be used in-lieu of curtains in windows, but if a tenant wishes to hoist colours at sunrise and lower them at sunset, it is within their right.  

I know someone who build a "T" from 2x4s to help him hoist the sheets up to the ceiling.His other trick was to secure a 2x4 to the walls, at a distance from the ceiling just slightly more than the thickness of the drywall.

I'm not saying the reign of Google and Facebook will last forever, but as @Arlen Chou states, it would be an extremely large feat for these companies to hoist up and leave the area. 

Might just need some jacks and a sister hoist bolted to it .

If you have fair laws, solid policies and procedures, and your courts are open for business, you should never have to pay a tenant to leave and hoist them on another unsuspecting Landlord.

When replacing a hoist make sure that the load has been engineered, Stamped and verified.

(I later learned that they had hoisted the items over the back deck when they moved in five years ago, but I wasn't confident enough in the current condition of the deck to go that route.)

The biggest thing was raising and fixing the sagging floors since it is a raised home, some of the hoist had settled but overall it went pretty well.

I grew up working construction and can build / repair anything, I have my hoisting and hydrolics license as well.I'm a property owner of a two family (house I grew up in) that I know rent out.  

There are a lot of of different people from people who have never bought a hoist people who have bought 100+