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

Yes, one approach is to continue with finding other cash flowing property.Let me suggest some other ideas for you to ponder, especially since you've also mentioned you are looking hard at DST's:What about Opportunity Zone funds? 

Not exactly sure about the legal details, but initial overview of the system seems to suggest this kills quite a few birds with one stone.  

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?

Your Lender If you need a deal finder my suggestion would be to go to the top of this page where it says AGENTS & click on that.

What other books does anyone suggest?

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

I suggest you be patient.

@Jonathan Greene I'm not sure what you mean by "most will not cash flow as an out-of-country investor" as it might suggest that the cash-flow of a given property has something to do with the nationality or residence of the owner but, in any case, you're absolutely correct that, historically, the net rental yields of LTRs in US cash-flow markets like the Mid-West have been typically higher than in the average European market, although that wouldn't be the case for many other US markets like California or New York.

Treating people like people doesn't mean you make the relationship personal as Nathan suggests and not all tenants will screw you over whenever it suits them.