If you decide to sell, you will only have paid a little more in interest over the remaining time that you are in your home.   

Or just sell it at a loss… I need some guidance here, I know very little about real estate investing other than I know I’ll be losing money after maintenance and paying a property manager.

The master is a selling point of a SFH in these areas and a nice bathroom space will help sell it.

(Sale price - selling costs) -(purchase price+ purchase costs)- renovations = taxable gain. 

My neighbor is ready to sell his home.

Unless you are SURE of $10-15k plus annual appreciation you sell. 

Instead of keeping them, I'd look to sell them and buy something more suitable as a long term rental.If you want to know why I have such a strong opinion on this, just google the following: - HOA Special Assessment - Florida Condos 2024 - search for news on the new laws - Zombie Condos

The US has $9 trillion in debt maturing next year that they will have to sell new bonds for that debt.

Furthermore, if this is not a property where meaningful appreciation is expected in the near future I would recommend selling.

It could make sense to sell the property and invest it in stocks if you can get a better return there, but there is also some benefit to having a little diversification.