Who is Jia Feng Shui Master? Major?

Jia is a famous numerologist and Feng Shui master in China. In addition, he is a lecturer in Guo Yi and advocates China psychology. He not only talks about feng shui from the traditional eight-character divination, but also applies psychology to it, which feels quite professional. I heard that he has also cooperated with many well-known real estate brands in Feng Shui projects, so he should be more authoritative and trustworthy.