Worst case with your goals is 15 years, 2 doors a year to 30 doors, but real life doesn't work that way. 

You only get one shot in life to have a lifelong marriage to the wife of your youth.

So I am clearly getting started a little later in life.  

I want to have more time with my family and give my kids the life I never had.

I'm entering this with the idea to become financially independent and have a healthy work life balance one day. 

Once the property is under contract I have it inspected to determine the current condition and life expectancy of all major components and appliances.  

They'll run you $4k plus a piece and shorten your life 1 year each time in stress and aggravation.To keep a high equity target off my back like you mention, I use my generic-sounding mgt co s-corp to put mortgages on my free and clear houses. 

I did my first deal as a "life Hack" at the beginning of last year. 

I have done numerous deals over the years, but I also consider myself the "new old guy", especially when it comes to certain topics and ventures. 

There are also numerous transportation construction projects planned and under construction linking Nashville to Clarksville to alleviate traffic as Clarksville is one of the fastest growing cities in the country.