The Pharisees were the supposed experts of the Law of Moses, which were the laws that the nation of Israel were governed by, so yes, they were the lawyers of their time.
Yes, lawyers need lawyers. If a lawyer is sued, they will hire counsel. If they do not have an expertise in a subject, they will hire a lawyer who is experienced in that area.
Truthfully, because most are liberal arts majors do not know what to do after graduating college and are mystified by the profession because television shows glamorize the profession, even though...