I am not a CPA either so I will go with what you said. The idea of classifying oneself as a real esate professional was introduced to me by a colleague who used it to reduce his specific tax liability.
I believe it would be a useful question to ask a CPA if I were sitting down for a consultation.
With respect to the qualification it is a fairly loose interpretation as the 750 hours. Is the time you are on piggington considered research.