If it's not in writing, it's unlikely to be true.Even if true, the seller didn't disclose it, so their ethics are questionable.

The last major thing I look for is work ethic.

Maintain good insurance, act ethically and honestly as best as possible, and keep good records and you virtually have nothing to worry about. 

I may be wrong in my understanding of the real estate code of ethics outlined in the Arizona state statutes, and everything else I've read regarding real estate transactions, but as far as I understand it the original agreement to sell is null and void due to the nondiscolure committed by the real estate agent/broker first in the fact that he signed the agreement to sell as the buyer, misrepresentating himself as the agent and stating he had a buyer/investor and Secondly because the agent involved should not sign in representation of the buyer but may only accompany the buyer to the signing (it was done through docusign, I signed first and then was notified that the buyer had signed and downloaded a copy, I didn't look at who the buyer was until just last night).

Wholesaling really isn’t much of a problem with the larger, experienced and ethically run wholesalers.  

Them splitting it up is an ethics issue.

Have your attorney send your contractor a letter explaining your dissatisfaction, any legal, ethical, or moral violations his operating methods result in, and making him an offer BELOW your “target” amountbest of luck I have an attorney that I considered speaking with on this matter, but I’m not sure that he specializes in things like this.

Million ways to make great money in RE, but communication and work ethic are paramount. 

More than happy, to turn this into a positive relationship with you.I’m here to help everyone—including you—achieve more success with motivated seller lead generation, wholesaling ethically, running a business, and any other areas where I can share my expertise.So, I propose we put this bickering aside and focus on providing real value.

I was an investor and after 10 years I couldn't find an ethical and knowledgeable agent.