I worked with Spencer Sadler via email and phone prior to moving here  He has a pretty  solid grasp on vacation rentals in Nashville market  I talked with a rep from turnkey vacation rentals who gave quite a bit of helpful information. 

How was anyone ever going to prove the method was not solid back then?

Congrats on getting the solid tenant!

Here's a solid article with some questions to ask before hiring a property manager https://www.biggerpockets.com/blog/2015-10-09-questions-ask-property-managementOne thing that has really helped me and my owners is setting communication expectations upfront.

So, if the three as a whole make a solid tenant and I'm comfortable with it, we'll roll forward. 

@Lorenzo Wright brings up a solid point.  

For a 2-1 in Acres Homes it's not $2500 and probably not $1250 either, especially without a garage.Please have your realtor run solid comps.

It's a solid stable market that holds value and rent rates through downturn.

I know getting a 25% ROI means either solid MFH investments or getting the property in foreclosure or something and rehabbing.

Also i commend you for putting yourself in a solid place financially, which is now affording you the opportunity to explore real estate investing as a tool to leverage your assets.