I have a problem tenant who is extremely annoying and creates many problems for other tenants.

Everyone has been extremely helpful in providing their insight and I greatly appreciate it.  

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

And as I’ve said before, the power bill was already over $400 last month, even with us being extremely power conscious.

The interest rate increase will hurt less since the loan balance won't be extremely high in this case.

Tax accountants (and lawyers) also tend to be extremely risk adverse so they tell you to do one thing after another to lower liability even if it doesn't always make sense from a cost/benefit way of looking at things given that, as we all know, time = money. 

Practice your personal elevator pitch in the mirror out loud until you feel comfortable saying it. 

Essentially he rehabs his properties to make them undeniably high quality (not just "good enough" for section 8) in order to generate a huge demand and thus be able to be extremely selective in his tenant screening process. 

They dislike the new tenants in front and have complained about smoking (not allowed) and loud fights.

I am extremely familiar with the Birmingham, AL market.