My W2 income is >$550k/year, if I build an RV/Boat storage facility, will my storage business expenses/losses be able to reduce my W2 taxable income? 

As well, I would not recommend buying a cashflow negative property, or even breakeven for that matter, as there are lots of places to buy at positive cashflow - unless you have endless cash reserves and money is not a concern for you.

My self-storage facility sometimes gets 5-6 calls in a month!

This would work for many different business models that have an owners quarters such as some storage facilities or car washes.

I had to replace a $9,000 furnace, a water heater, and a couple of appliances, and I am about to spend another $10,000 on excavation for my storage facility.

Can anyone give me resources about purchasing a storage facility in the DC area?

Just sharing your experiences and thought process is great.We do Self storage development but the concerns are the same.  

Personally, we pivoted to self-storage a few years ago.

~Add or take off promotional offers for guests....like book a weeknight for a $10 coffee gift card, etc.Really the options for changing up a listing are endless, but there's a few ideas.

Can storage facilities be built?