I am 56 years old and would like to increase my income and plan for retirement.

What happens to value if you calculate the forced appreciation from the increased rents? 

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If everyone has available units, you will probably want to increase your vacancy numbers.  

Taking a small loan to add a greater value to this property is good debt and will increase your net worth.  

I don't like to plug in uniform, base rent increases, etc because you may be buying way below market with massive increases initially then subtle 2-3% across your ownership, etc.  

This could even be two years in advance if their goal going in was to rehab, increase NOI, and then sell.  

My investment home (SFH) which is currently rented out has increased my DTI significantly.

I believe I can do a much better job investmenting that money in property that will increase in value twice as fast as mutual funds + cash flow.

The inherited tenants were both on MTM leases.  14 months now after closing on the property, both of those inherited tenants are now on leases, 1 of them signed an 18 month lease with a built in rent increase that went into effect this past June.