Firm News

Sep 29, 2026

Seyfarth Adds Real Estate Dealmaker at the Intersection of Property and Entertainment

Jason Grinnell Joins the Firm's Downtown Los Angeles Office as Partner
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September 29, 2026 – Seyfarth Shaw LLP continues to bolster its world-class Real Estate department with the addition of highly experienced partner Jason Grinnell, whose practice sits at the intersection of real estate and the entertainment industry, in the firm’s Downtown Los Angeles office.

Grinnell brings to Seyfarth decades of sophisticated real estate experience, most recently at Glaser Weil Fink Howard Jordan & Shapiro LLP, representing institutional, corporate, private equity, and family office clients in complex real estate transactions. His broad-based practice spans acquisitions, dispositions, leasing, and sophisticated finance matters, with a unique niche in  representing entertainment industry clients in studio and office headquarters leases.

Grinnell’s debt practice includes construction, permanent, and mezzanine financing, as well as loan workouts, forbearance agreements, distressed debt transactions, and renewable energy project finance. He offers proficiency in the development and financing of solar and wind energy portfolios nationally.

"Jason has built an impressive real estate practice and is known for handling sophisticated transactions for institutional clients," said Paul Mattingly, national chair of Seyfarth’s Real Estate department. "His experience across financing, development, and complex deal work  makes him a strong addition to our team at a time when demand for experienced real estate partners is at a premium. We are excited about the opportunities ahead for our clients and practice."

He serves a diverse client base, from publicly traded technology companies to private equity shops to family offices across a variety of industry sectors, including health care and medical office plays, retail, office, and industrial investments, and regularly advises financial institutions, developers, investors, and corporate occupiers.

“Jason is a dynamic partner who is clearly aligned with our strategic goals,” said Dana Treister, managing partner of Seyfarth’s Downtown Los Angeles office and a partner in the Real Estate practice. “We see Jason playing an important, strategic role in further developing our prolific Real Estate Department and Downtown Los Angeles office. His professional and personal qualities are a great fit for our firm.”

Grinnell’s extensive experience also includes joint venture transactions, corporate headquarters leasing matters, private equity portfolio transactions, and complex financing arrangements for institutional and private clients.

"Seyfarth's outstanding reputation for real estate, along with its collaborative culture and national and international platform, made the firm an ideal choice for me," said Grinnell. "Its combination of deep industry experience and broad geographic reach will enhance my ability to provide clients with practical, business-focused advice on their most important matters."

Grinnell earned his JD from the University of Oregon School of Law and his BA from Dartmouth College.

Grinnell has been recognized by Lawdragon as one of America's Leading Dealmakers and was chosen for The Legal 500 U.S. Elite for Real Estate in Los Angeles. He has served on the Executive Committee of the California Lawyers Association's Real Property Law Section and currently serves on the Board of the Men's Guild of Children's Hospital Los Angeles.

Seyfarth’s Real Estate Department serves sophisticated clients across a number of industries. Recognized as one of the largest real estate practices in the US, we have built an integrated team that serves local, regional, and national clients on the acquisition, financing, development, leasing, restructuring, servicing, and disposition of noteworthy real estate assets and portfolios. This experience extends across comprehensive array of asset classes, including office, industrial, multifamily, retail, health care, and data center projects. We leverage our size and depth to partner with clients and to invest in material enhancements in how commercial real estate law is practiced.

Seyfarth’s Downtown Los Angeles office has established a full-service practice with recognized strengths in real estate, business immigration, corporate law, labor and employment, and litigation. The office continues to grow its capabilities in areas such as land use matters and class actions. Seyfarth’s Downtown Los Angeles attorneys work closely with the firm’s three other California offices and its global teams, advising organizations across a wide range of industries to deliver coordinated, business driven solutions.

About Seyfarth: With more than 1,000 lawyers across 19 offices, Seyfarth Shaw LLP provides advisory, litigation, and transactional legal services to clients worldwide. The firm is recognized for its innovative approach, advancing the standard of legal service delivery in an evolving global marketplace.

Seyfarth collaborates with clients to capitalize on opportunities and solve complex challenges across capabilities, including corporate, litigation, real estate, regulatory compliance, labor and employment, and executive compensation and employee benefits. Committed to collaboration and a client-centered approach, Seyfarth delivers solutions as sophisticated as the challenges clients face.