[rnln]

Wow, I have heard that contractor took the portion of fund and ran, all the time. Never heard client don't pay.
J, seriously you need to talk to your friend, since you have nothing to hold her responsibility. Not to complain with him but to ask him for help to get her to meet with you to see what is going on. What is it that she is not happy about and is not on the plan? Anything you can do some quick fix and get pay? You truted her because she is your friend's sister right? Why not getting him involve when there is a problem with her. If he is a good good friend, he would understand and there shouldn't be any of these "craps" come between.
BTW, how do you know if she didn't tell him her side of this problem?