Chicago
Linda M. Doyle is a partner and serves as the firm’s general counsel. Previously, her practice focused on employment-related litigation and counseling.
She also previously served as the firm’s chief human resources officer, deputy general counsel, and hiring partner.
- Served as lead counsel and secured a defense verdict on behalf of a manufacturer and distributor of wire products against allegations of wrongful termination, harassment and discrimination
- Served as lead counsel and secured a defense verdict from the DOL for a food company against a Sarbanes-Oxley whistleblower allegation
- Served as lead counsel and secured a defense verdict for an energy company and its CEO against allegations of breach of contract and tortious interference with a contract related to a non-competition agreement
- Chambers USA 2008 to 2018, Labor & Employment
- Benchmark Litigation 2014 to 2019, Litigation Star, Labor & Employment
- The Legal 500
- American Bar Association, Litigation and Labor and Employment Law Sections
- Shattered Globe Theatre Company, board member
- McDermott Will & Schulte Management Committee, member
- McDermott Will & Schulte Executive Committee, member
- University of Michigan Law School, JD
- Saint Joseph''s University, BS
- Illinois
- Pennsylvania
- US Court of Appeals for the Seventh Circuit
- US Court of Appeals for the Eighth Circuit
- US District Court for the Central District of Illinois
- US District Court for the Northern District of Illinois
- US District Court for the Southern District of Illinois
- US District Court for the Western District of Michigan
- US District Court for the Eastern District of Wisconsin
- Supreme Court of Illinois
- US Department of Labor
Sebastian Bonk
Düsseldorf
Sebastian Bonk advises companies, investors, founders and management on all aspects of corporate law as well as on national and international M&A transactions. He also regularly advises on venture capital and venture debt financings. He furthermore focuses on advising on management and employee shareholdings as well as on the structuring of equity-based incentive compensation.
Sebastian advised:
- Founders and shareholders of Office Partner Group on the sale of a majority stake to Printus Group
- Berlin-based mobility start-up Door2Door GmbH on the sale of all shares in the company to Dubai-based Swvl Inc.
- SIGNA Sports United in connection with its merger with Yucaipa Acquisition Corporation, a listed Special Purpose Acquisition Company (SPAC), which also included the simultaneous acquisition of the British online bicycle retailer Wiggle/CRC Group
- Handelsblatt/Best Lawyers™, “Ones to Watch” in Germany: Mergers and Acquisitions Law, Venture Capital Law and Corporate Law, 2022-2025
- Higher Regional Court of Düsseldorf, Second State Exam
- University of Münster, First State Exam
- University of Münster
- Bielefeld University
- Germany
- English
- German
Thomas A. Beisken, LL.M.
Düsseldorf
Frankfurt
Advises investors on domestic and cross-border real estate transactions.
Advises on large-scale development projects and is recognized as a leading adviser on leasing transactions for real estate projects during the development phase.
Structures and negotiates complex real estate-related management and service agreements.
Advises real estate investors on joint ventures, real estate financings, distressed transactions and non-performing loan (NPL) transactions.
Thomas Beisken advises national and international real estate investors including private equity funds, pension funds, real estate consulting companies, family offices and financial institutions on all aspects of real estate law in the field of real estate transactions (asset und share deals, single- and portfolio transactions), project developments, asset und property management, commercial lease law, real estate financing and real estate joint ventures.
He has extensive experience with regard to office and retail real estate, residential and student living, project developments, and forward deals.
Thomas advised:
- Art-Invest on various transactions including Kaiserhof in Cologne (Allianz-Property at Kaiser-Wilhelm-Ring), Fürst und Friedrich in Düsseldorf, Neuer Kanzlerplatz in Bonn and Alter Wall in Hamburg
- Blackstone on the acquisition of the high-rise building Pollux in Frankfurt
- Branicks-Group on the acquisition and sale of various real estate assets across Germany amongst others in Berlin, Munich, Darmstadt and Bonn and various letting activities
- Handelsblatt/Best Lawyers™, Germany: Real Estate Law, 2021-2027
- JUVE Handbook of Commercial Law Firms, Recommended: Real Estate and Construction Law: Real Estate Law as well as Project Development and Plant Construction, 2023-2025
- The Legal 500 EMEA, Germany: Real Estate Law, 2022
- Düsseldorf Bar Association
- Higher Regional Court of Düsseldorf, Second State Exam
- University of Canterbury, LL.M.
- University of Bonn, First State Exam
- University of Freiburg
- Germany
- German
- English
Dr. Thomas Ammermann
Düsseldorf
Dr. Thomas Ammermann focuses his practice on corporate law and capital markets. Thomas advises clients in corporate and transaction/M&A matters, in particular in the automobile, manufacturing, hospitality and real estate as well as transportation industries, including corporate restructurings, cross-border mergers and joint ventures.
Thomas has special experience in cross-border matters. In that regard Thomas worked in the corporate department of the Firm’s New York office in 2012. Most recently Thomas lectured at Shanghai Jiao Tong University’s Koguan Law School.
- The Legal 500 EMEA, Corporate and M&A, 2016
- Higher Regional Court of Koblenz, Second State Exam
- University of Würzburg, PhD
- University of Würzburg, First State Exam
- Paris Nanterre University
- University of Regensburg
- Germany
- German
- English
- French
Heather S. Bethancourt
Dallas
Heather S. Bethancourt represents clients in business process and information technology outsourcing transactions. She has extensive experience representing healthcare systems, carriers and vendors negotiating revenue cycle management outsourcing agreements and other complex outsourcing and commercial transactions. In addition, she represents clients in strategic supply agreements, manufacturing and distribution agreements, technology licensing, technology maintenance and service agreements, technology development, cloud-computing transactions such as software as a service (SaaS) arrangements and strategic alliances. Heather also advises clients on technology and commercial contract issues that arise under other corporate transactions such as mergers and acquisitions and joint ventures, including transition services agreements. Her experience with other commercial contracts includes a human resources emphasis representing clients in independent contractor, contingent labor and recruiting services agreements and advising clients on rebadging issues in outsourcing transactions.
- Represented Boulder Community Health in negotiating its outsourcing agreement with Optum to manage key nonclinical functions, including revenue cycle management
- Represented several management services organizations in negotiation of revenue cycle management services agreements with various vendors
- Represented MEDNAX in its negotiation of a financial management services agreement in conjunction with the sale of its subsidiary, MedData to a private equity and venture capital firm
- Best Lawyers in America, Information Technology Law, IT Outsourcing Law, 2020-2026
- Chambers USA, Outsourcing; Technology: Outsourcing, Band 2, 2022-2026
- Legal 500 US
- Next Generation Partner in Outsourcing, 2022-2023
- Recommended in Media, Technology and Telecoms: Outsourcing, 2024-2025
- Super Lawyers, Texas Rising Stars, 2014-2019
- SMU Dedman School of Law, JD, magna cum laude, Order of the Coif
- Texas A&M University, BA
- Texas
Sandra M. DiVarco
Chicago
Sandra (Sandy) M. DiVarco focuses her practice on the representation of hospitals and health systems. She has counseled health care facility and system clients regarding all aspects of health law transactions and health system restructurings.
- Served as lead outside counsel for multiple internationally renowned health care system on complex survey matters encompassing clinical care, laboratory, governance, life safety and medical staff
- Brought to closing a heavily negotiated, twelve-hospital system member substitution transaction
- Structured a related-party hospital acquisition involving unique state regulatory issues and negotiating post-closing covenants to comply with Ethical and Religious Directives for Health Care
- Chambers USA, 2013-2021 and 2026
- The Legal 500 United States, 2019 to 2020
- The Best Lawyers in America, Health Care Law, 2013-2023 and 2026-2027
- Who’s Who Legal: Healthcare, 2021
- Super Lawyers, 2019
- American Health Lawyers Association
- Illinois Association of Health Law Attorneys
- Loyola University Chicago School of Law, JD, cum laude
- University of Illinois Chicago, BSN, with honors
- Illinois
Jacques Buhart
Brussels
Paris
Jacques Buhart, based in the Firm’s Paris and Brussels offices, focuses his practice on corporate M&A and EU competition. He is the founder of the Firm’s Paris office, which counts now about 100 lawyers.
On the M&A side, Jacques advised Mitsubishi Heavy Industries in the restructuring of the French nuclear industry and acquisition of interest in Framatome and Orano as well as attempt with Siemens to bid for Alstom; Metsaliitto in its acquisitions and divestments in the EU; TUI is its acquisition of Transat France and Nidec in the creation of a joint-venture with Peugeot and Fujitsu in the acquisition of a French cloud company. Jacques also advised Arriva in the privatization of rail transport in France.
Jacques has handled a broad range of complex competition matters. In the merger field, among others, he represented Cellnex in challenging the joint- venture between Vodafone and Télécom Italia, Mitsubishi Hitachi Power in challenging the acquisition of Alstom by GE; TotalFina in its acquisition of Elf (second phase); Metsä-Serla in the sale of its carbonless paper division to Arjowiggins (second phase) and in the notification of SCA’s acquisition of Metsä Tissue (second phase); and Atos Origin in its acquisition of Banksys.
- The Best Lawyers in France, 2025
- The Legal 500 EMEA, Belgium: Competition: EU and Global, France: EU, Competition and Distribution, 2023-2024
- IFLR1000, M&A, 2022-2023
- Who’s Who Legal, Recommended, M&A and Governance, Competition, 2021
- Chambers Europe, Competition/European Law-Belgium
- Paris 1 Panthéon-Sorbonne University, LLM (DESS), Diploma of the Institute of Comparative Law
- Hague Academy of International Law, JD
- Paris-Panthéon-Assas University, MBA
- Institute of Comparative Law
- École Supérieure de Commerce de Paris (ESCP)
- Brussels
- Paris
- English
- French
Brad Dennis
Chicago
Brad Dennis represents a broad range of healthcare organizations, with a particular focus on complex transactions involving health systems, health plans, innovative joint ventures, and value-based care models. He works with health systems, health plans, investors, and other providers to design and execute deals that advance clinical, financial, and strategic objectives in the evolving healthcare ecosystem.
- Served as transaction and health regulatory counsel to nonprofit healthcare systems in connection with membership substitution transactions
- Served as transaction counsel on multiple whole-hospital and service line joint ventures between nonprofit healthcare systems
- Assisted counsel with Stark Law and Anti-Kickback Statute guidance in connection with the acquisition of a hospital on behalf of a nonprofit health system
- Legal 500 US, Recommended, 2025
- Best Lawyers: Ones to Watch in America, Healthcare Law, 2022-2026
- BTI, Client Service All-Stars, 2022
- Member of the American Health Lawyers Association
- Member of the Illinois Association of Healthcare Attorneys (IAHA), and member of the IAHA Annual Symposium Planning Committee
- University of Wisconsin Law School, JD, cum laude
- Michigan State University, BA
- Wisconsin
- Illinois
- English
Ralph E. DeJong
Chicago
Ralph E. DeJong advises clients on the compensation, executive benefits and employee benefits of tax-exempt organizations. He provides counsel on designing and preparing deferred and incentive compensation arrangements, leading governing boards in the review and approval of executive and physician compensation arrangements, negotiating and preparing executive and physician employment agreements, and analyzing the private inurement and intermediate sanctions implications of executive and physician compensation and benefit arrangements.
- Chambers USA 2007 to 2017, 2019
- Acritas Stars 2020, listed among independently rated lawyers
- American Bar Association, Tax and Health Law Sections, officer
- Notre Dame Law School, JD, magna cum laude
- Calvin College, BA
- Illinois
- Michigan
Hamid Yunis
London – 22 Bishopsgate
Hamid Yunis advises clients on complex areas of transactional law (M&A, Investments, Private Equity, Major Projects and Corporate Finance) predominantly within the health industry and on infrastructure transactions. He has substantial global experience in innovative structures for complex joint ventures, public-private partnerships and funding arrangements. Hamid’s global client base includes health care providers, medical products manufacturers and organizations establishing “medical cities”, along with non-health clients where he advises on infrastructure projects and major projects. Hamid also has a particular interest in advising Sovereign Wealth Funds on their investments and other transactions.
Hamid joined McDermott from a leading international law firm based in London where he spent over 14 years and was head of the firm’s Health Care Group.
- Advised Varian Medical Systems on a number of transactions in the UK, Europe and Asia. Some of these were structured as PPP arrangements. In particular, Hamid acted for Varian on the negotiation and financial close of the contract relating to the major supply of proton beam therapy equipment and the supply of associated maintenance services in the UK (UCLH and The Christie)
- Advised C&C Alpha Group on various investor funding rounds and on the sale of London International Hospital
- Acted for Johns Hopkins Medical International on the establishment of a Joint Venture in China for a number of clinics
- The Best Lawyers in the United Kingdom, Healthcare Law, 2023-2025
- Legal 500 UK, Recommended, 2022–2025
- Chambers UK, Healthcare: Corporate/Commercial, 2022–2025
- The Lawyer, Hot 100, 2023
- Who’s Who Legal, Healthcare, 2021
- Chambers UK, Banking & Finance (Islamic Finance), 2021
- Chambers Europe, UK: Banking & Finance (Islamic Finance), 2020
- Chambers Global, UK: Banking & Finance (Islamic Finance), 2018
- Law Society of England and Wales
- The University of Law – Chester, LLB, Honours
- England and Wales
