Meet the Team
Rooted in generations of ranching tradition, our leadership team embodies the enduring spirit of the American West—where integrity, hard work, and respect for the land guide every decision.
Jason Nielson
Chief Executive Officer
Jason has been ranching land his family has owned in Utah for over 150 years. As Legacy Prime Farm’s CEO, Jason has been ranching for over a decade, having taken over his family’s farm, “The Farm,” that his Great Grandfather started in the late 1800s.
Nielsen received his Bachelor of Science in Zoology from Brigham Young University, attended medical school at Albert Einstein College of Medicine and did his fellowship at Harvard University. He is a board- certified pediatric orthopedic surgeon and the only fellowship trained specialist in Nevada for Sports Medicine treating youth. Nielsen is an avid rancher and horseback rider, is fluent in German, loves mountain biking, skiing and fishing. He and his wife, Melissa, have 5 children and reside in Henderson, NV.
Sean Gubler
Chief Financial Officer
Sean, Legacy’s COO/CFO, discovered his love of cattle and farming from working summers of his childhood on his grandfather’s 100 head cattle farm in southern Utah. As he grew his own family, he wanted to continue the farming legacy with his own children.
In 2012, he partnered with Jason Nielson and Stewart Lamb contributing his wisdom of ranching and raising elite Wagyu cattle. His contributions helped expand and cement the footprint of Legacy Prime Farms.
Gubler has a Bachelor of Science in Conservation Biology from Brigham Young University and a Doctorate of Dental Surgery from Loma Linda University School of Dentistry. Sean resides in Henderson, NV with his wife, Aimee, and their six children.
Stewart Lamb
Manager of Farming Operations
Stewart is Legacy’s Manager of Farming Operations and his family has been farming and ranching in Arizona since 1880.
Stewart has a Masters of Agricultural Science from Iowa State University and specializes in agricultural, mining, land, permitting and real estate development. He resides in Spanish Fork, UT with his wife, Monica, and their 5 children.
Joseph Manzella
Director of Business Operations
Joseph Manzella is the Director of Business Operations, responsible for the relationship between the ranch and the hospitality and retail industries. Joe oversees marketing, brand growth, public relations, and locating emerging markets and capital partners to strategically grow and expand the Legacy brand. The professional reputation of Manzella is well documented, with success expanding over 25 years in all aspects of the hospitality and F&B industry. Manzella is a graduate of Arizona State University and resides in Scottsdale, AZ with his wife, Michelle, their three children, and Marshall, their chocolate Labrador retriever.
Dan Christison
Vice President of Sales
Dan Christison’s family came to the Arizona Territory during the chaotic 1870s and joined with other pioneer families in struggle to extract it’s immense mineral wealth and to engage in commerce by establishing one of the earliest dry goods and hardware stores in the Phoenix valley.
Dan came to Legacy Prime Farms after a career in the United States Marine Corps where he served as an 1803 Amphibious Assault Officer obtaining the rank of Captain. He is a two-tour veteran of the Iraq War, as well as participating in numerous operations in the Central Asian States. In addition, he also served a 3 year term on recruiting duty in Arizona as RS Phoenix’s Operations Officer and ASU’s Officer Selection Officer.
Dan is currently serving as the Senior Vice President of Sales for Legacy Prime Farms (LPF) since 2023, establishing and maintaining all of LPFs new and current partnerships. He ensures that LPF products are delivered in the timely manner and are inspected to live up to the LPF brand promise of incomparable quality in the local fine meats business space.
Dan is the father of two children, Emma and Reade; and his free time is mostly consumed by attending his daughter’s volleyball games as well as serving as youth football coach.
Cody Tillery
Ranch Manager
Ranch Manager, M Diamond Ranch and The Poor Farm, Happy Jack, AZ