Nicholas,
I have found that waiting on improvements to increase rent works better. Tenants know the area they are looking in and if you try to charge too much they will pass on your property. I noticed you are from O'Fallon. My wife and I met while in the Air Force. She spent seven years at Scott AFB many, many years ago.
Paul,
Tennessee doesn't have any statutes from the Tennessee Uniform Residential Landlord and Tenant Act regarding rent increases. I keep a PDF on my desktop of this statute for reference. Its pretty easy to find, but the two parts I spend the most time with are 66-28-201 and 401.
As for this conversation, the IRS asks if you are charging fair market rent. If you are not, then you cannot claim a loss on that specific property. Your expenses and depreciation are limited to your income on that property. So if you only collect $5000 in rent and you remodel the unit or making significant repairs, you will be limited to that $5000 and your net income will be zero. We use those "losses" to help reduce our taxable income as rental income is considered passive income. In the past, the FMR has usually been lower than local rents, but with the spike in residents and the popularity of Nashville, sales, rents and property values have skyrocketed, as I am sure you are aware.