Coota as in Cootamundra?
Umm. I wouldn't say don't use them. Just be cautious. Anyone who has product to sell and calls themselves a property investing group, seems a little dubious to me.
I'm in the process of setting up a property network myself, and am not including BA services, otp or personal stock sales. Just can't think of a way to ensure they remain unbiased for the client.