'就是地产市场里隐藏的lemons很多。具体比如,liquidaction, earthquake zone,还有房顶,结构,这种东西是新手不大熟悉的。'---This is not easy for everybody. Even for agents, it will take at least one year very active experience from checking the home, following the inspection, analyze the inspection report, working with the general contract to estimate the cost for rehab, the permit, the claim history.....