Then I have to file a tax return for my LLCs.

You make all of the BAH payments back tax free for you.2.  

One other thing to keep in mind and consider is taxes.

Adding taxes and insurance would be an even higher payment. 

That certificate would show open taxes, water, housing violations, citations, condemnations, receiverships, construction liens and other municipal liens.

Having the ability to live for free, while minimizing the taxes on my W2 income.

Real estate investors often find themselves working with many providers between insurance, financing, property management, tax preparation and strategies, etc.

With 3 properties already, you're definitely not "new" anymore ;-) Doing a refi is very possible (depending on how much equity you've accumulated) to do those types of things...the issue can be the tax ramification that you face if/when you do it.

.- Taxes are usually much lower the first year. 

Finding good deals is nearly impossible with the prices, tenant laws, and taxes working against us.Since you’re considering the Midwest, I’d definitely suggest keeping Detroit on your radar.