Chicago aldermen on Friday afternoon pressed Corporation Counsel Edward N. Siskel for more details how the city fights and settles lawsuits in the wake of an adverse $44.7 million judgment awarded by a federal jury last week.The lawmakers expressed concern about the financial exposure the city could face after jurors ruled in favor of Michael LaPorta, who was disabled for life after a drunken off-duty Chicago police officer shot him in the back of the head.Sitting at the dais for his first budget hearing since accepting …