Success is not final, failure is not fatal: it is the courage to continue that counts.
-Winston Churchill



Susan Wissink is passionate about helping her clients, learning about their businesses, and helping them reach their goals in the areas of mergers and acquisitions, entity formation, loans, and general corporate matters. In numerous complex transactions, this experienced business attorney has represented both buyers and sellers, including asset and stock-based acquisitions and sales, mergers and other business reorganizations.

As a member of our six-person management committee, Susan’s leadership and vision help set the tone and direction of the firm. As a Phoenix-based business attorney, she assists her clients in forming new companies, strategic partnerships, commercial loans, general corporate matters and commercial health care matters.

Helping the victims of 9/11 with their legal needs after the terrorist attacks on the twin towers of the World Trade Center in New York left a profound impression on Susan, and the experience instilled in her a lasting desire to provide pro bono services to those in need. Outside of her work as a sought-after business attorney, her favorite hobbies are spending time with her family, snow skiing, hiking, biking, and volunteering for local charities that help children or animals.


  • J.D., cum laude, Arizona State University, Sandra Day O’Connor College of Law
  • B.A., English, Northwestern University

Areas Of Practice

Our business and finance attorneys represent national, regional and local clients participating in significant transactions.

Our business attorneys recognize and appreciate the value of entrepreneurship and innovation, and are committed to providing efficient, straightforward and business-oriented solutions that facilitate success and avoid pitfalls while recognizing early capital is precious and expensive.

Fennemore boasts a large and sophisticated client-focused Mergers and Acquisitions practice.


  • Health Care

Representative Cases

  • Represented Fortune 500 company in numerous asset and stock acquisitions and dispositions, in general corporate and contract matters, and municipal bidding
  • Represented hard money lender in numerous loans in the Southwestern United States
  • Represented building technologies company in both disposition and acquisition of stock or assets
  • Represented physician-group in sale of practice to large hospital
  • Represented privately-held pharmaceuticals benefits manager in the sale of company to publicly-held company
  • Represented automobile dealership companies in connection with purchasing and selling various dealerships in the southwestern United States
  • Represented a private individual in the sale of a well-known recording studio in West Los Angeles, California
  • Represented an Arizona-based company in the acquisition of the assets of a California company involved in the formulation and packaging of agricultural, home and garden, and industrial products
  • Represented a physician-owned group in the surgical device business in combination with a national physician-owned business
  • Represented physician and dental practices in admission of new partners, reorganizations and mergers and acquisitions
  • Represented family-owned retail business in sale of all assets

Awards and Honors

  • Top 100 Lawyers in Arizona, AZ Big Media, 2020, 2022
  • Southwest Super Lawyers®Business/Corporate, 2018-2023
  • Southwest Super Lawyers®, Top 25 Women in Arizona, 2016-2018, 2020-2021
  • Chambers USA, Leading Lawyers for Business, 2011-2022
  • Best Lawyers in America®, Business Organizations (including LLCs and Partnerships), Corporate Law, Mergers and Acquisitions Law, Real Estate Law, 2011-2023
  • Top 100 Lawyers, AZ Business Magazine, 2016 -2020
  • Best Lawyers in America®, Lawyer of the Year, Mergers and Acquisitions Law, 2019
  • Southwest Super Lawyers®, Mergers and Acquisitions, 2007-2008, 2012-2017
  • Recipient of Top 50 Pro Bono Attorney Award, 2006
  • Recipient of Volunteer Lawyers Program Award for “Operation Good Neighbor” (assistance to Hurricane Katrina victims), 2006
  • Recipient of Arizona Business Journal “40 Under 40” Award and State Bar of Arizona Young Lawyer of the Year Award, 2004
  • Recipient of “Star of the Quarter” award in 2005 and “Star of the Year” award in 2002 from the American Bar Association – Young Lawyers Division
  • AV® Preeminent™ Peer Review Rated (the highest rating available), by Martindale-Hubbell

Articles and Presentations

Professional and community activities

  • Member, SGC Legal Women in Law Taskforce
  • Member, Northwestern University’s Alumni Admissions Council
  • Fellow, American Bar Foundation
  • Board of Trustees and Past President, Childsplay
  • Past Chair, Director, Children’s Museum of Phoenix, 2006-2015
  • Member, P.A.N.D.A. (which raises money for Steele Children’s Research Center), Board President 2010-2011
  • Former Director, Arizona Humane Society, 2003-2012; Board Chair, 2008; Compassion with Fashion Chair , 2010


  • Arizona
  • California
  • Colorado