Growing up on a mushroom and cattle farm in Co Cavan gave Lisa McKenna a deep sense of the importance of hard graft. While the road from farm to firm seems uncommon, McKenna says it was how she grew up that motivated her to enter the legal profession. “When I was growing up, it was unheard of to go into law unless you had some form of family connection and I had none whatsoever. [However] from a very young age, I was always fascinated with how the law could help people and I was lucky to be born into a…