I agree with @Jonathan Greene that the question is vague, so my advice will have to be as well.The short answer: MTRs are real estate, so just like all real estate, any place that can long-term-rent cash flow with increasing jobs/population can be a suitable site to purchase. 

If the unit is empty, change the locks, clean it, and get it rented.

My experience has always been better with a local lender.With that said, I am reaching out to David Greene's The One Brokerage about a refinance.

@Jaycee Greene I appreciate the info and clearing that up for me!

Quote from @Jessica Kiely: Thanks for the helpful advice @Jonathan Greene.

I'm currently reading David Greene's "BRRRR" book and I will be utilizing my VA Loan as a first home purchase (duplex) for my first home utilizing the VA Loan.

Quote from @Jonathan Greene: I don't think the LVP will feel right with carpet underneath and it's not a sound installation practice to have that buffer layer there.

I’ve heard David Green mention it in a podcast recently.  

@Jonathan Greene to piggy-back on what your laying down here: I believe a core component of the "problem" is a gross over & mis use of "Cash-flow". 

I would be very careful about accepting advice from anyone that could personally benefit.Listen to David Greene Podcast on YouTube, Spotify, etc.