Welcome!
All aspects of the real estate profession offer the prospect of an unjustified claim by an unscrupulous buyer/seller/other agent. I have worked for several banks over the past 20+ years without "real" litigation. It's a matter of paying attention to the details and addressing issues timely. REO business requires a lot of documentation when a problem comes up but most of all, don't pretend you are an attorney, contractor, inspector, plumber, electrician, magician, etc. I have had a few instances of having to discuss the merits of litigation with a buyer's attorney who decided not to proceed (there is a thing called counter suit) and two that did file but were ultimately unsuccessful. Documentation and keeping within the boundaries of your expertise is key when dealing with any real estate transaction. And yes, there are some clients you just have to pass up. This is not "easy money" but neither is a traditional real estate business if you take your resonsibilities seriously.