@Julie Kalar The house is in Seattle (Ballard neighborhood)I contacted Seattle Fire department Training division before the holidays and left them a voice mail.

Hello BP, I'm wondering if need to invest in a call screening service for my incoming calls or to just let them go to my Google Voice VM? 

One would think she had an idea of what the condition was prior to giving you an offer but regardless had they set aside the time for due diligence she could've voiced her concerns then.

For contact info I provided my name, a phone number (via Google voice) and my email address.  

I'm sure they need some type of permit and permits typically require notifying neighbors so they have a chance to voice opposition to any zoning use change be it permanent or temporary.There must be some more appropriate place in your city that would better serve the needs of the homeless than a vacant lot full of tents.

I heard your question and thought "I know that voice'".

You won't be able to out-market or out-spend the professionals who have spent years branding themselves as the "expert" in their sub-market.If you spend money, spend it on "active" marketing which gets your face, voice, and presence directly in front of people you may do business with.Think Outside of the BoxDo the things that most people won't do.

I could just mail the tax address but I'd rather leave at least a voice mail.

I like to keep connected with the buyers that I can get his or her feedback on how close my rehab estimates were that I can adjust in the future.Sorry for any typos, I'm voice texting :-)

I set up a Google Voice number to receive calls and catch voicemails.