I am hesitant to sell because the property is in a GREAT area with high-quality renters, and theres lots of growth in the area… But I am open to any advice you may have.Thank you in advance! 

For example, Pinal County has the highest projected population growth over the next 30 years, but I’m not sure if that necessarily makes it a better market than Phoenix for long-term investments.When evaluating a location, what are the most important things you focus on?

After 16 years in my career (RE broker) and 13 years as an investor, I'm at the equity growth stage as well. 

How would you make it grow the quickest?

That's not a show stopper since you'll never go broke paying tax on profit.But the ability to use all of that big tax bill to benefit yourself throughout the rest of your life and then pass it along to your heirs tax free is seriously worth considering. 

Set a clear budget, research properties carefully, and keep growth potential in mind as you plan.Good luck!

All the markets you mentioned are solid choices for affordability and long-term growth potential.If you’re looking to narrow it down, consider Indianapolis or Columbia, SC, as both have strong rental demand, landlord-friendly laws, and stable economies.

i.e. longer than normal vacancy, bad tenant screening, poor maintenance, skipped rent payments, etc.There could be a handful of reasons why it lost it's ability to cash flow.

Quote from @Christine Song: Has anyone invested in AAA Storage growth fund or PassiveStorage.com?

I have a Breville (around $300) and it's big enough to cook a full size pizza or whole chicken, it toasts, has convection ability.