G. Mark " Mark" Mamantov

The Isaacs Law Firm is recognized as a preeminent and dynamic law firm that practices primarily in criminal defense. We have been providing legal services to Tennessee and across the southeast since 1993. By working with our exceptionally talented team of lawyers, our clients achieve remarkable results. Gregory (Greg) P. Isaacs, graduated from The University of Tennessee College of Law in 1988. Mr. Isaacs founded The Isaacs Law Firm in 1993. The Isaacs Law Firm has maintained the highest prof...

Cullen Wojcik is a multifaceted, highly successful criminal defense lawyer. He joined Knox Defense in 2019 and focuses his practice on defense of state and federal court prosecutions. He is a 2011 graduate of the University of California Hastings College of Law in San Francisco and a UC Hastings Bridge Fellow where he served as a post-bar certified law clerk with the Knox County Public Defender’s office before opening his own practice. Cullen is a member of the Tennessee Supreme Court, ...

Denise S. Terry is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Denise S., who practices law in Morristown, Tennessee, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Denise S. is held by other top lawyers in the same geographic and legal practice area.

Robert L. Bowman is an extremely qualified, experienced, and effective trial attorney whose practice areas are Employment and Labor and Local Government and Public Utilities. He is recognized by Best Lawyers in America and Mid-South Super Lawyers in the Employment and Labor practice area. Mr. Bowman has over 20 years of experience and is a Rule 31 Listed General Civil Mediator. He represents Fortune 500 companies as well as small business owners in complex litigation involving employment disc...

Betsy J. Beck is a Partner and a member of the Firm’s employment law team. Ms. Beck has spent her career litigating issues involving employment discrimination, retaliation, wage and hour and other compensation issues, and all other aspects of the employer-employee relationship both in federal or state court and in front of the Equal Employment Opportunity Commission (EEOC), Department of Labor (DOL), and various other state and federal administrative agencies. Business owners, in-house ...

Jeffrey Whitt is a highly respected criminal defense attorney based in Knoxville, Tennessee. Known for his formidable presence in state and federal courtrooms across Tennessee, he has built a reputation as a skilled trial lawyer and relentless advocate for his clients. Jeff earned his law degree from Samford University in 1991 and holds a bachelor’s degree from Maryville College, where he was an Academic All-American and All-Conference honoree in both football and tennis. An active lead...

Grant Lewallen is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Personal Injury Litigation - Defendants. Grant, who practices law in Knoxville, Tennessee, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Grant is held by other top lawyers in the same geographic and legal practice area.

Kate E. Tucker focuses her legal practice on Immigration Law. Having been through the U.S. immigration process herself as a British National, Ms. Tucker fully understands the far-reaching effects of immigration status on an individual's entire life and provides individualized legal advice after a thorough review of her client's short and long-term objectives. She provides valuable insight, reliable and efficient advice and step-by-step guidance to her clients throughout the complex immigratio...

Rick Powers graduated with honors from the University of Tennessee College of Law in 1975 and was Order of the Coif. He has more than 40 years of general civil trial practice experience with more than 350 jury trials. His practice areas now primarily include health care liability for hospitals, nursing homes, and physicians; insurance defense in trucking, automobile, and homeowners’ cases; and other commercial litigation. Over the last five years, Mr. Powers has successfully tried five ...

Jim Wright was born in Murfreesboro, Tennessee. Jim’s father was a lawyer so he grew up working in his Dad’s office. He attended Middle Tennessee State University and the University of Tennessee College of Law, was honored with the Order of the Coif and served on the Tennessee Law Review. He is admitted to the United Supreme Court Bar as well as all Tennessee State and Federal Courts. Jim is also admitted before the Sixth Circuit and Fourth Circuit Bar as well as the U.S. Court of...