Erin Brill is an employee at Davis & Main.
Erin and other representatives from Davis & Main and HHM meet to confer on the Sandpiper case. ("Cobbler")
Erin once again meets with other representatives from Davis & Main and HHM meet to confer on the Sandpiper case. ("Amarillo")
After Jimmy causes a scandal with an unsanctioned television ad, Erin is detailed to assist Jimmy, though in actuality, her assignment is to monitor his activities and keep him in line with company policy. While Erin attempts to do this in as diplomatic a manner as possible, Jimmy is quick to recognize the leash Erin represents, however, ducking her at one point and then arguing with her at court. ("Rebecca"), ("Bali Ha'i")
Erin observes as Jimmy attempts to get himself fired. When he eventually succeeds in doing so, after having his employment terminated, Jimmy snatches a soda can from her grip and deliberately throws it into an office garbage can. ("Inflatable")
Erin demands to speak with Jimmy as he leads a group of seniors through a chair yoga at Sandpiper Crossing. Going outside, she confronts Jimmy about his ploy of lying to the seniors to get his settlement quicker. Jimmy not only affirms her accusation, but abruptly states his disdain for his clients, seemingly unknowing that he is still patched into the microphone set. As such, the seniors quickly abandon Jimmy upon hearing his admission when he goes back inside. He meets Erin in the carpark outfront Sandpiper Crossing and tells her the plan worked and the seniors will likely continue their class action, having set up the argument with Erin to do the right thing by his clients. Erin tells Jimmy she was serious about everything she said and departs. ("Lantern")