I want to get some suggestions from experts on what option worked better for them and why? 

But for Me, I use it... ive communicated with the app builders and they respond real quick if you have suggestions or comments.. it Cost$$ is the downfall I have..

Honestly if the property taxes are enough to make the rentals a bad deal I’d suggest selling.

I’d love to hear your thoughts, insights, or even suggestions for resources.

If you're targeting a specific market, I suggest connecting with local investors through meetups. 

Your 3% interest suggests so… if so, did you move out less than 3 years ago?

He suggested calling them to negotiate something, to your satisfaction, as you previously stated, including removing the panels. 

c) how can I get better at marketing (in general) & marketing for Sellers any suggestions would be helpful.The current changes in CL doesn't really bother me to much, I just want to know if I'm waiting my time?

The "fast turn" metric would suggest that is a hot property. 

They have even suggested that if I want to pursue the matter, my only option is to sue, as they believe they are fully within their rights to withhold this information.