take a higher percentage downpayment make sure they are liquid, sign a longer term lease, give yourself out clauses, ask about ada accessibility or requirements for occupancy from the VA 

Prepayment penalties- usually 1-5 year terms.

It sounds like you already made up your mind to enforce the terms outlined in the lease which, in my opinion, is the right decision.

My wife and I currently have 2 single family long term rentals and would like to add this to the porfolio due to their 3% mortgage and high equity.

Unfortunately, I closed after classes started and ended up doing mid term rental which then turned into an Airbnb.

Your continued observance of the terms contained in your lease agreement is both expected and appreciated. 

heart and home manages all zips of Central Ohio they don't discriminate, they work with out of state, and they do medium term. they are conservative that's who I recommend 

If you are looking for long-term growth of your investment portfolio, paying all cash will make it very difficult.

It seems PMs don't make a ton of money for all that they do and their incentives don't always line up with investor's incentives (i.e. getting paid more for turnover in terms of tenants when I'd prefer no turnover or vacancy).Sorry for the long intro, but having said that, I have a few questions...   

For those not purchasing with cash, assessing income or cash flow can often come down to the terms of the mortgage financing for an AirBNB or Vacation rental.