Private Money solicitation

[Roger Poulin]

I went to a real estate auction that was not far from were I live. A guy that had a huge estate died, someone bought it and split it into 5 ac lots.   I went mostly to network, but I was ready to buy. The sale requires payment in 5 days, so the people buying had to have access to cash quickly. I registered at the check-in tent to get a bidder number, and saw they had a list of all the bidders on a yellow pads. I asked if I could take a photo of the pages. The nice lady at the table grabbed the pads and made photo copies of all the pages.  So now I have names and addresses of 89 people that potentially could get their hands on money quickly.  

Would it be out of line to send each a letter asking them if they ever considered private lending?

Would it violate SEC syndication rules?

How would I word such a letter?

Thanks in advance