Broker responsibility when buying investment home for self?

[Susanne Stauffer]

I am a licensed real estate broker in WA and starting to look for a rental for myself - unlisted properties that someone might want/have to unload. I know I have to disclose that I am a broker.  To get a 'deal' it has to be someone who does not want to list the property and wants it gone now - but I know the seller would net more if they sold it on the open market.  Any advice from other brokers on this?  Not my intent to deceive anyone - they have already told me they do not want to list.  Do you have them sign an acknowledgement that there is an option of listing on the open market? 

Probably a question for my broker but wanted to see what other active brokers who are buying properties for themselves are doing to address this potential liability?