For example, if you buy a home for 100k, and then improve the property and now it is worth 200k. 

There are a couple of unique tax laws to real estate investors - 1031 exchange, bonus depreciation on certain improvements, Qualified Opportunity Zones, real estate professional status, etc.Make sure that the accountant you interview to understand the above concepts.best of luck!

Search youtube, "Multifamily owner and baby boomer sells 18 units and uses a deferred sales trust instead of 1031" to here more details.

The plan was to pay cash, refi out and use that to improve the property. 

Many youtube videos on the concept will help spell it out for you and give you confidence to proceed. 

This gives you a foundation for making a fair offer.Secure Financing: Be prepared to show you’re a serious buyer with funding lined up, whether through cash, traditional financing, or a creative option like seller financing.Have a Strategy for Repairs or Development: If the property is distressed, outline how you’ll handle improvements to bring it back to productive use.

I have not been impressed to date with Suncoast PM and if nothing improves I'll be looking for a new PM when agreement term expires. 

Net Sale - Is the contract price, minus the closing costs and commissions.Adjust cost basis - Is the purchase price, plus capital improvements, minus depreciation.

A good manager can improve performance for a mediocre investment; a bad manager will kill a good investment.

These also all have corresponding Youtube Videos on the Real Estate Rookie Youtube.