Family law can be a tough practice to handle, but Theresa Lechner says she always tries to have a plan.As an associate at Dussias Wittenberg Koenigsberger LLP, Lechner helps guide her clients through any number of challenging scenarios involving some deeply personal matters. Lechner said this is what drew her to family law.The 36-year-old Lechner is a member of both the Illinois and Wisconsin State Bar Associations and the …