Gregory M. "Greg" Wilkes

Clark H. Rucker is a partner in the Oil & Gas/Energy division of the firm, where he focuses on litigation and transactions related to the oil, gas, and energy industries. His clientele includes a variety of entities such as oil and gas exploration firms, midstream companies, propane and liquefiable fuel companies, mineral funds and companies, and large landowners. Additionally, Mr. Rucker extends his legal expertise to non-energy litigation, real estate transactions, intellectual property...

James B. Harris is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law and Litigation - Environmental. James B., who practices law in Dallas, Texas, has been recognized since 1989. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James B. is held by other top lawyers in the same geographic and legal practice area.

For over two decades, Kirsten M. Castañeda has briefed and argued state and federal appeals and original proceedings that raise issues critical to businesses and industries across Texas and the nation. In pursuing appellate relief, she never loses sight of the fact that every appeal involves more than just the law. Learning a client’s business and ultimate goals allows Kirsten to craft legal arguments and strategy that serve not only the case at hand, but also the client’s ...

John is a founding shareholder of Cooper & Scully. A highly skilled and experienced trial lawyer, John's hallmark is his dedication to client satisfaction. John has been selected to the Texas Super Lawyers® list of the Top 100 Lawyers in Texas from 2018-2021. He has been elected to the American Board of Trial Advocates (ABOTA) with the rank of Advocate, and has been selected to D Magazine’s Best Lawyers in Dallas (2015-2020, and 2022). John is AV Preeminent Peer Review rated by ...

Chrysandra S. Bowen is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law, Family Law Arbitration and Family Law Mediation. Chrysandra S., who practices law in Denton, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Chrysandra S. is held by other top lawyers in the same geographic and legal practice area.

Steven Hartsell is a registered patent attorney and focuses his practice on patent infringement litigation, patent licensing, and inter partes review proceedings. He has represented clients in federal courts across the country in cases involving a variety of technologies, including semiconductors, distributed agent architectures, cellular phones, telecommunications, software anti-piracy, medical devices, DVD and television controls, and optical systems. Steven also has extensive experience re...

Harry Joe ’s clients receive the benefit of over forty years of experience in immigration and nationality law. For corporate clients, Harry provides support and advice in nonimmigrant visa matters, permanent residence filings, immigration-related corporate compliance issues, due diligence review, and immigration program development. Harry also represents employers in Worksite Enforcement proceedings under IRCA, and in litigation in the United States Immigration Courts, Board of Immigrat...

Abbey Garber focuses his practice on tax litigation and providing advice in connection with applying tax laws to individuals, estates, corporations, and partnerships. Serving more than 30 years in the Office of Chief Counsel at the Internal Revenue Service, he tried cases of all sizes in Tax Court, earning significant favorable opinions in fraud, tax shelter, and many other cases; received a full Tax Court opinion in an attorneys’ fees case; and prosecuted criminal tax cases in United S...

John W. Proctor is the Managing Partner of Brown Dean. He has over 30 years of experience in civil trial law. Mr. Proctor has been board certified in civil trial law since 1990 and represents railroad and aircraft manufacturers in difficult and often emotionally charged personal injury and wrongful death litigation and consistently obtains successful results for his clients. Since 2002, he has been listed in the Best Lawyers in America and has been named a Texas Super Lawyer by Thomson Reuter...

Sean R. McKenna is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar, Health Care Law and Litigation - Health Care. Sean R., who practices law in Dallas, Texas, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sean R. is held by other top lawyers in the same geographic and legal practice area.