I have two single family homes on the North side of Racine (nicer areas) that I purchased for 45k and 57k back in 2012, respectively.

@Presh DineshkumarMost of the Plus and Pro membership "perks" are very U.S.A. focussed - even the on-line calculators - and have less practical value to Canadians ... even those unfortunate enough to be stuck in the GTA ;-)Some Plus/Pro features .. such as the search members by zip or postal code now work (sort of) for Canadians (polite nagging can pay off ).If you are a flipper, or offer a real estate related service (architect, trade, etc), then the ability to post advertisements to the Real Estate Marketplace is a benefit.I upgraded to a Pro membership early on to support the site and its growth as I found it to be a credible venue for exchanging knowledge and making contacts with respect to real estate. 

I do not and would not do this, but I respect it if you do. 

Should I attend the funeral (to pay my respects, obviously, not to talk business)?

I don't know about your state laws with respect to marketing, but I don't see why it'd be required there, however I would disclose early and make it clear.

I understand building a regular relationship of trust and mutual respect but I'm not going to risk my business for that relationship and hope of future work.

@Ian Turner, with all due respect, it sounds like a can of worms!

He respectfully asked me permissions to take any steps.  

I have great respect for Realtors and hope to do business with many.  

I would respectfully tell them that they can if they want, that you have photos and documentation and would be happy to explain it to the judge.