Ethics of disclosing due diligence results?

[Robert Lindsley]

Hi there,

I was interested in buying a duplex in a cool beach community in Florida.  The property was being sold through an agent and was purchased by a wholesaler out of probate.

When I did my due diligence, the zoning office informed me the property was zoned SFR and had no license to be a duplex. I informed the agent that I was not going to make an offer because of the zoning issue.

I'm pretty sure that since I told the agent about the zoning issue, he now needs to disclose it to everybody.  My question is, was it ethical for me to inform the agent, or should I just have kept the issue to myself and not told him?

I've been doing this for 3 years, but am always trying to improve and could use your advice to navigate these potentially tricky waters.

Thanks!

Robert.