Marisa O'Sullivan

Haleigh has broad commercial litigation experience representing both plaintiffs and defendants at every stage of lawsuits involving real estate, breach of contract, breach of fiduciary duty, fraud, business divorce, personal injury and tort litigation, and aviation. Haleigh has distinguished herself as an associate by her maturity in the courtroom. She has briefed and argued motions at every stage of litigation, deposed fact and expert witnesses, successfully mediated disputes at their infanc...

John DeGroote is a former global company general counsel who has mediated and arbitrated complex and significant commercial and business disputes nationwide since 2013. Having served as outside counsel, chief litigation counsel, general counsel, company president, and corporate director, he understands the legal, business, and practical decisions that often determine whether a case settles or not. As a mediator, John has been named the Lawyer of the Year for Mediation in Dallas/Fort Worth by ...

Randall (Randy) G. Ray is a member of MWM’s executive committee and partner in the firm’s corporate law group with more than 37 years of experience. Randy works on corporate and securities matters for a wide variety of clients, including public and private companies, boards of directors, board committees, executive officers, underwriters, private equity firms, and investors. Randy assists clients with corporate finance through public and private offerings of equity and debt, secur...

Lolly Chauppette is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Lolly practices law in Dallas, Texas Best Lawyers has recognized Lolly Chauppette since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Lolly Chauppette is held by other lawyers.

Leslie Echols Pitts is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation, Insurance Law and Litigation - Insurance. Leslie Echols practices law in Dallas, Texas Best Lawyers has recognized Leslie Echols Pitts since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Leslie Echols Pitts is held by other lawyers.

Katie advises and represents employers, executives and management in the field of employment law. Her experience includes managing complex litigation covering various employment law topics, including Title VII of the Civil Rights Act of 1964, The Americans with Disabilities Act (ADA), The Family and Medical Leave Act (FMLA), The Fair Labor Standards Act (FLSA), The Employee Retirement Income Security Act (ERISA), Occupational Safety and Health Administration (OSHA), non-compete issues, leaves...

Thomas Laughlin is one of the founding partners of the Dallas office of Kirkland & Ellis LLP. Thomas regularly represents clients in mergers and acquisitions (including controlling investments, preferred equity and other minority investments, and SPAC transactions), divestitures, joint ventures, debt and equity financings, restructurings and other corporate matters. Thomas has broad experience across many industries, but in particular, he has focused his practice representing clients in t...

Neely Pauley Munnerlyn is a lawyer recognized by Best Lawyers in the practice area of Employee Benefits (ERISA) Law. Neely Pauley practices law in Dallas, Texas Best Lawyers has recognized Neely Pauley Munnerlyn since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Neely Pauley Munnerlyn is held by other lawyers.

Charles M. Persons is a lawyer recognized by Best Lawyers in the practice area of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Charles M. practices law in Dallas, Texas Best Lawyers has recognized Charles M. Persons since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Charles M. Persons is held by other lawyers.

Donald E. Herrmann has over thirty-five years of trial and appellate experience in civil litigation, representing individual and commercial clients as both plaintiffs and defendants in matters as diverse as business torts, intellectual property claims, construction disputes, employment disputes, and various contract and property rights claims. He also writes and lectures frequently at state and local continuing legal education programs.