We have built a database based on room prices from various roommate leasing sites. 

I was driven through 38111 zip code by a local, @Alex Craig and he explained street by street how different the houses, tenant base and rents were.

For these investments, if they are both properties you are able and willing to buy, I would make a decision based on revenue/expense assumptions.

When you are forming all sorts of small partnerships with no real "corporate" backing and pooled asset base to provide security for the counterparty, typically you can't get a swap.At the end of the day, I was just talking to an LP in some deals that are going south.  

You need to understand the market, the tenant base and how these things work.

We felt we had established trust with Engelo and his team based on verifiable facts.

A financial planner, CPA, and others may be better resources for you in deciding which is the best play here based on the immediate health needs and life expectancy.Hope this helps. 

Take a look at the list and keep in mind that increases are based on what they used to be priced at (growth) not at relative cost to each other.

(https://audr-apps.franklincountyohio.gov/Calc/TaxEstimate) Based on that estimator, with the current purchase price the property tax would be ~2.5x of what is currently being paid.

Plus, they don't offer an automatic split for mortgage payments based on an amortization schedule.