Koehler & Vernail, Attorneys at Law is a criminal law and family law firm that provides legal services to families in Leesburg, VA. Call us today! When you find yourself dealing with a legal situation, you'll have to find a local law firm for sound guidance. Koehler & Vernail, Attorneys at Law is a criminal and family law firm in Leesburg, VA. Led by two attorneys with over 40 years of combined experience, we're able to represent and assist clients in a variety of situations. Any legal situation that involves criminal charges can have a devastating impact on your life. You'll want to find an attorney who can assist you quickly. Koehler & Vernail, Attorneys at Law is a criminal law firm in Leesburg, VA. We represent both defendants and the prosecution, and we assist with expungements and appeals.