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Macdonald Devin Ziegler Madden Kenefick & Harris, PC

(214) 744 3300
(214) 747 0942

Head of department/lead counsel for A/E Law
Gregory Ziegler, J.D., Shareholder

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Practicing A/E Law Since


Caseload Dedicated to A/E Construction Law


Caseload Dedicated to E/O Defense Work



Number of attorneys on staff: 30
Number of attorneys dedicated to A/E Work: 15

Major professional liability carriers trust Macdonald Devin to defend their insureds in errors and omissions claims, and the world’s most well-respected design firms call on us for assistance with their legal challenges. Our record of successful defense and our professional reputation among architects, engineers, and those who insure them has resulted in our attorneys being consistently selected as lead counsel in high profile, high stakes professional liability cases, including some of the largest and most complex matters of the last decade. We take great pride in the work we do for the design professionals who put so much creativity, heart, and skill into their craft.

A leader in his profession and in his firm, Greg heads a 12-member team of legal professionals resolutely focused on implementing proactive and efficient approaches designed to achieve the swift, economical, and favorable resolution of disputes.

Firm Information

For 30 years, the attorneys at the Dallas-based law firm of Macdonald Devin Ziegler Madden Kenefick & Harris, P.C. have been exceeding client expectations, providing sophisticated and innovative counsel to regional, national and international clients across numerous industries on a diverse range of matters. Our three decades of serving clients locally and nationwide have earned us a reputation as innovative strategists, fierce litigators, and trusted counselors.

Each of our attorneys brings their own strengths, experience, and insight to their representation of our clients, but they all share the same commitment to client service and legal excellence. We know how much can be at stake when you come to us with a legal issue. From high-profile, high-stakes litigation to the development of comprehensive strategies to minimize risk, we sweat every detail while never losing sight of the big picture.

Our trial lawyers have established themselves as formidable litigators who carry with them the confidence and assertiveness that comes from a lengthy track record of success. Collectively and individually, we provide our clients with effective and determined representation.


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