Yeah, that’s kind of the point. #1 is crucial. Can’t be without it.
Maybe a better question would be to ask for stratification of the DP sources according to those criteria.
Oh yeah AN, for the record, I fit 1 and 2, missed 3 by one year. Your question(s) don’t make sense to me. I don’t see how the Realtors don’t know if there has been a recent sale or a contingent sale by their clients that is sourcing the DP. They know this, they have to. As far as mommy and daddy /inheritance, well, technically they wouldn’t know unless they asked, but like FLU indicated, it can be rather obvious sometimes.