I think my unit is unique because it's a 2-bed and 2-bath with in-unit washer/dryer, storage space, minimal assessment fees, and I believe it is priced to sell. 

What are the best ways to source self storage facilities for sale?

I currently Flip, Rent, and own a self storage facility.

Generally speaking the more bedrooms and storage you have the less turnover you will experience.

NNN commercial, self-storage or regular resi tenants. 

-new flooring-paint-baseboards-closet modifications to improve storage Any recommendations are greatly appreciated.

I have just started to keep track of the return on investment starting with the storage unit.

The tenants and landlord have been very understanding and flexible, and I'm able to use our shared spaces to do a lot of the processing I need to do, as well as use part of the basement for storage.

More recently I have a barn here in Western Wa where we get serious rain; the barn is at the bottom of a big hill and it was useless for storage..........I had a drain installed here too.

In that case you have to allow for so many days or put stuff in storage.