John G. Sinodis

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John G. Sinodis

John Sinodis is the Chairman of the firm, the Managing Partner of the Arizona office, and a member of the firm’s Executive Committee.  He represents a broad range of asset-based lenders in all aspects of business finance including commercial litigation, asset recovery, loan restructuring, and secured transactions.  John regularly advises business clients in litigation matters and bankruptcy.

He is a trained mediator having received his training from the Straus Institute for Dispute Resolution at Pepperdine University School of Law.

John is an active member of the Equipment Leasing and Finance Association (ELFA).  Prior to joining the firm, he served as the President of General Leasing Co. and is a member of its Board of Directors.  He has earned the AV Preeminent Rating with Martindale Hubbell®, has been selected for inclusion in The Best Lawyers in America®, and the Southwest Super Lawyers list in Arizona.

John is a former Vice-Chair and currently serves as a member of the Arizona Epilepsy Foundation’s Board of Directors in an advisory role.

Bar Admissions



U.S. District Court, District of Arizona

U.S. District Court, Central District of California

U.S. District Court, Southern District of California

U.S. District Court, Northern District of California

U.S. Court of Appeals, Ninth Circuit


Arizona State University College of Law, J.D. (1985)

Arizona State University College of Business, B.S. (1982)

  • State Bar of Arizona, Member
  • State Bar of California, Member
  • Maricopa County Bar Association, Member
  • Equipment Leasing and Finance Association, Member
  • LEAN: Lease Enforcement Attorney Network, Member
  • Author, “UCC Article 9 Changes: A Rose by Any Other Name Would Not Smell as Sweet” for NEFA Newsline(July/August 2013)
  • Author, “Artisans’ and Personal Property Service Liens” for ELFA State Law Compendium for Arizona(March 2013)
  • Co-Author, “Lessor More Protected: UCC Article 2A Analysis Strengthens Resistance to Common Lessee Collection Defenses” for The Monitor (January/February 2012)
  • Co-Author, “The UCC’s Public Policy Favors the Lessor, Come Hell or High Water” for the Lease Enforcement Attorney Network (January 2012)
  • Co-author, “Lending in Indian Country – Understanding Important Issues” for The Monitor (2011 Conference Issue)
  • Co-author, “What Questions should Human Resource Professionals be Asking?” for NEFA Newsline (Fall 2008)
  • Author, “Community Property Laws Can Affect your Lease Transaction” for UAEL Newsline, Vol. 34, No.4 (Fall 2007)
  • Author, “Lessor Liability for Environmental Clean-up: How Far Will It Extend?” for UAEL Newsline, Vol. 3, No. 1 (March-April 1997)
  • “Small Business Regulation: Let Our People Go” for the SSBIA Conference in Dallas, TX (1982)
  • The Bankruptcy Reform Act of 1994, 1995 to 1995
  • Sexual Discrimination in the Workplace: A Case Study, 1990 to 1990
  • Litigation Support: A Sales Approach Toward Enhancing the Litigation Case, 1989 to 1989
  • Effective Documentation of the Lease Transaction,1988 to 1988
  • Lender Liability; Emerging Theories, 1987 to 1987
  • Lease v. Conditional Sale; Knowing and Understanding the Difference, 1986 to 1986
  • Epilepsy Foundation, Advisory Board Member – Arizona
  • Selected for inclusion in The Best Lawyers in America® in the following areas:
    • Bankruptcy & Creditor Debtor Rights / Insolvency & Reorganization Law (2021 – 2024)
    • Commercial Litigation (2021 – 2024)
  • Selected for inclusion in the Southwest Super Lawyers® in the area of Business Litigation (2007 – 2009; 2011; 2014 – 2021)
  • Recognized with an AV Preeminent Rating by Martindale Hubbell®

Jennings Haug Keleher McLeod expands by adding the talented lawyers of Waterfall, Economidis, Caldwell, Hanshaw & Villamana. Now with offices in Albuquerque, New Mexico as well as Phoenix and Tucson, Arizona, the Firm will continue to serve its clients across the Southwest under the name Jennings Haug Keleher McLeod Waterfall LLP.