Can I charge them fees & rent for storage of their crap? 

They have a lawsuit pending in federal court with a document storage company as well who claims they are owed $40k plus.

I’ve focused mainly on Florida but have also looked at options in Sacramento and other slightly more remote locations in CA.While I’m familiar with value-add strategies (ADUs, renovations or storage rentals), these seem like heavy lifts for modest gains.

Seller used one of the units for storage.

Placing order for 300 more self storage locks in case China gets shut down or tariffs come into play.  

- what about storage space?

We have not disabled ours or converted to gas, but Tenant must sign a Fireplace Addendum stating if they use it, we require a higher renter's liability policy with us as additional insured, rules on wood, storage, use, safety, they pay for yearly professional cleaning each year they are there, etc.  

PS I like Iowa just started there myself in 24 providing capital to local flippers and landlords .. doing what I preach lending money .. although I did buy a storage unit. 

I can build a mini storage or whatever as long as the zoning is compliant.

As preivously stated above, I have a small storage space (around 200 sqft) that can be converted into an ADU (already have approved plans from LADBS) and am meeting with various contractors and teams.