The outstanding mortgage with interest is $175,000.I have been considering offering 100-125k for the building, but without a tenant upstairs, this only increases my costs --- at least for the next four years.

Rental will increase also in the surrounding areas as people will not all be able to live right in the hot Nashville spots.

She said it was because she needed help which sounded reasonable so I didnt increase her rent as stated in the lease. 

Hi @Cesar Ramirez,For the most part, six months plus a future-current appraisal must support the new increased value.Appraisers are frequently rather conservative until about the 12 month mark.

If am seeking a deal from a wholesaler can I view the property and have a contractor give me an estimate for repairs before putting the house under contract?

I think that it would be optimistic to account for any appreciation or much rent increase at all.

I'm sure your $50k annual savings will increase over time as well, but this is just something to keep in mind.2)  The lenders I've dealt with typically only lend up until you have mortgages on 10 properties.  

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If he intends on seeking federal employment after his military service, I would suggest leaving the money in the TSP.

If you can increase your NOI then the VALUE increases NOT the cap rate.