I have a storage facility that my husband and I likely are going to be purchasing.

You can do that too, just be prepared with a storage space/warehouse or to get lucky on a lot of material.It's easy enough, just follow back from the guys that buy a lot of material in your area to the distributor to the manufacturer.I listened to a podcast one time with a guy who was rehabbing 100's of units of apartments in Texas and he started his own wholesale building materials company and was buying containers of vinyl tile from China and was selling to other apartment rehabbers in Texas.Could you do this?

Some are very specialized, like WPG (malls in B & C cities) or NXRT (apartments in B and C neighborhoods) or REITs that are self-storage facilities, medical tenants, or cloud data centers. 

In layman’s terms, it means direct ownership in a piece of physical real estate, such as land, an office building, apartments or self-storage facilities, with the intent of making a profit.

Your town likely has a bylaw prevention refuse / storage in front yard.

Pool house with plumbing Additional ~ 300 sq. ft. shop/storage buildingProperty on corner lot with 2 extra lots backing up to the end of a cul-de-sacPossibility of converting one of extra buildings to office for side-hustle/LLCGarage Appt #1:Connected to main house by a shared roof and connected breezeway~ 900 sq. ft. with kitchen/full bath/laundry and separate access/entry (stairs)Efficiency Appt:~ 800 sq. ft.

And there are also property managers for self storage facilities, retail, office buildings, etc.

You will find great tenants that can afford the new rents plus the storage fees.

What you can do is hire movers and move their stuff to a storage with 3 months pay for rent.

More traditional things I would suggest, billing back utilities, charging for pets, upgraded finishes to increase rents, charging fees for things like storage or extra parking.Authors I would suggest Ken Mcelroy and Dave Lindahl.