Flipping Out Blood may be thicker than water, but Jeff doesn't spare his sister-in-law/assistant, Sarah ANY slack. After a year of working with Jeff, Sarah still struggles with daily tasks and Jeff thinks a little tough love would go a long way, so he enlists her in his own Jeff Lewis version of assistant boot camp. Meanwhile, Jenni nearly brings down the roof, literally, at one of Jeff's most important clients. Will disaster ensue? Find out this Tuesday 8/17 @ 9/8c on BRAVO's Flipping Out 4.