Jason Leland Chrestionson

Jonathan L. Schwartz is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Jonathan L., who practices law in Chicago, Illinois, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonathan L. is held by other top lawyers in the same geographic and legal practice area.

Roger J. Jones represents clients in tax controversy and litigation matters at all levels of the federal court system, before the Internal Revenue Service (IRS), and before various state courts and tax agencies. He has represented taxpayers, including numerous Fortune 500 companies, in more than 80 docketed cases before the US Supreme Court, most of the US courts of appeals, federal district courts, the US Court of Federal Claims and the US Tax Court. Read full biography: https://www.mwe.com/...

John O’Neil’s legal knowledge, business savvy, and leadership of complex transactions have earned him a reputation as a global leader in private equity fund matters. John heads the Investment Funds Practice Group, the Firm’s leading-edge global platform that provides innovative and bespoke legal strategies to sponsors and funds of all kinds. John is also a member of the Firm's Executive Committee. John has been recognized by Chamber’s Global, Chambers USA, IFLR 1000, L...

Melissa A. Vallone is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Melissa A., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Melissa A. is held by other top lawyers in the same geographic and legal practice area.

John Bucheit is a seasoned litigator with extensive experience handling complex commercial disputes and employment-related matters throughout the country. He has represented a wide range of clients in their most complex and high-stakes litigation, earning him a reputation for being a creative and innovative problem solver. John is well-known for handling unique issues of first impression and is praised for his ability to craft effective and innovative solutions for his clients. In one case, f...

Brent has devoted more than 30 years to advising banks, thrifts, insurance companies and agencies, securities broker dealers, and investment advisory clients on complex regulatory matters, formation and capitalization, business combinations, examination, and enforcement issues. Brent is a strong advocate for his clients, dedicated to achieving reasonable and practical solutions. Brent’s experience is focused on the financial services industry. He began his career as an examiner with the...

John represents large publicly traded and privately held businesses in controversies, transactional matters and tax planning involving state and local corporate income/franchise taxes, gross receipts taxes, sales and use taxes, and other business privilege taxes. He also defends clients in state tax audits and litigation before courts, administrative agencies and departments of revenue throughout the country. In addition to his state and local tax practice, John is also one of the nation&rsqu...

Floyd Mandell is the national co-chair and founder of the firm's Intellectual Property department. He has represented some of the world’s most recognizable companies in intellectual property litigation. Few other lawyers have handled as many high-profile cases over the past 20 years involving copyrights, trademarks, trade secrets, trade dress, false advertising and defamation. He has been lead counsel in more than 40 published decisions, many involving novel or cutting-edge issues. On m...

Jeralyn Baran is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Jeralyn, who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeralyn is held by other top lawyers in the same geographic and legal practice area.

Steve is a partner in the firm’s Litigation Department, where he represents clients in complex civil litigation matters before state and federal courts throughout the country. He has considerable experience with commercial disputes, constitutional challenges, statutory interpretation issues, and defamation and invasion of privacy suits. He is skilled at representing municipalities in cases involving so-called “locally undesirable land uses” such as airports, music amphitheat...