Very possible I made mistakes.

First pro is you learn how to be a landlord and to manage properties and this is the best way to get started into real estate investing.

Be the cheapest and best.

Your starting depreciable basis should have been the LOWER of what you paid or the FMV in 2010 when you converted it to a condo. 

Who was the lender?

The fact that you have already owned and sold a rental property gives you a great experience to start from.In terms of the best place to invest - that is whatever place meets your criteria, goals and investing style.Personally flips have not been working as well for me lately, but when we get the right BRRRR deal those are still working well.

All the best,

We did get much lower costs when we changed to minisplits but the initial cost is high.Central HVAC unit, very expensive to run.

Best of luck as you grow your business!

But there's so much here that its best to have a conversation.