Thank you Ivy. Got the bad FSM list. I was planning on consulting Davind Tong, but he is on this list. the other FSM i thought of consulting was Edwaard Liu, but no reviews about him on this forum These 2 fit my budget of within $1000 for home audit... Thought of Mr. Chang, but he is expensive and also based on reviews he suggests lots of reno changes which we cannot do... Any other recommendations for good FSM?