Associations: American Subcontractor's Association of the Carolinas, South Carolina Bar Association - Construction Law Division.

Published Cases: Goodwin v. Johnson, 357 S.C. 49, 591 S.E.3d 34 (Ct.App. 2003); JRS Builders, Inc. v. Neunsinger, 364 S.C. 596, 614 S.E. 2d 629 (2005). Sitework Suppliers v. South Carolina Department of Transportation, 11-ALJ-19-0324-CC (2011).

While in law school, Mark served on the editorial Board for the Southern Illinois University Law Journal and was a teaching assistant for the legal writing and argumentation courses. He likes speaking to groups about construction law, and has both authored materials for and conducted seminars in that area. Mark resides in the Park Circle neighborhood in North Charleston with his three dogs, Ripley, Lucy, and June Carter.

Education: Millikin University (B.A. 1994); Graduate Dean's Fellow, Southern Illinois University; Southern Illinois University School of law (J.D. 2000).

Typical clients include business owners, subcontractors, developers, architects and design professionals, homeowners' associations, and homeowners with defective construction claims. Mark grew up in the rural, farming community of Pana, Illinois. After college, he was a correctional officer in the west cellhouse at Menard Correctional Center, a maximum-security prison located on the Illinois side of the Mississippi River. He left the prison to become the Parent Coordinator for a school district in Illinois, where he helped establish an after-school program for children in a public housing development, where he also volunteered. He was named a Graduate Dean's Fellow at Southern Illinois University in 1996 and entered law school in 1997.

Mark Koontz is a trial lawyer with significant experience in many aspects of civil litigation including mechanic's liens, payment bond claims, and collection matters. He also provides owner representation in contractor disputes, defective construction litigation, and civil litigation involving real estate and contracts. Mr. Koontz particularly enjoys helping subcontractors, material suppliers, and owners that are experiencing difficulties with construction projects or defective construction. Mark has also been successful in assisting clients in various administrative law matters including assisting women and minority contractors in obtaining their Disadvantaged Business Enterprise (DBE) certification within the South Carolina Department of Transportation's DBE Program.

Wm. Mark Koontz

Wm. Mark Koontz, Esq.

Adam Mlynarczyk, Esq.

C. Brandon Belger, Esq.

​Ryan A. Love, Esq. 

​Jamie W. Morehead, Esq.



Location and Hours

1058 East Montague Ave.

North Charleston, SC  29405


(843) 225-4252

(843) 277-9120 (fax)


Mon - Fri 8am - 5pm

Saturdays by Appointment
Closed Sundays

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Disclaimer: The information in this website is for general knowledge and basic information and should not be construed as legal advice.

(843) 225-4252