David Schlossman, CCIM

President & Managing Broker

David grew up in Fargo and is a 4th generation real estate entrepreneur. Prior to joining Horizon, David was a senior agent with Goldmark Commercial for nearly a decade where he built strong relationships earned through hard work and trust. David graduated from Southern Methodist University in Dallas, TX from the Cox School of Business with a degree in finance and is an active CCIM designee (Certified Commerical Investor Member)

ND License Number 8360

Justin Berg

Vice President

Justin Berg is an accomplished real estate developer and broker with over two decades of experience, specializing in building community-focused, sustainable developments in the Red River Valley. With an accounting background and an MBA, he leverages data-driven decisions for equitable solutions in land development. Founder of Grassroots Development, Justin's notable projects include New Haven of Reile's Acres, Prairie Parkway, and award-winning historic rehabilitations like the Front Street Taproom in Fargo, which garnered recognition from the ND Historic Society. His work emphasizes the creation of vibrant, people-centered spaces while preserving historical integrity.

ND License Number 7680

Shane Cullen

Broker Associate Partner

Shane Cullen is an experienced real estate broker and a proven leader with a 12-year track record, including a term as president of the Fargo Moorhead Area Association of Realtors. His commitment extends to board service for various organizations. Shane's expertise ranges from residential sales to lot sales in prestigious developments like River’s Bend, under the mentorship of the esteemed Steve Stoner. He continues to handle lot sales for Grassroots Development's key projects, including New Haven of Reile’s Acres and Prairie Parkway. Shane is also a principal in Balzum Cullen Construction, LLC, where his construction acumen and dedication to quality are integral to the success of shop condominiums and commercial developments. His hands-on approach ensures excellence in every project.

ND License Number 8752

Jace Engelstad

Senior Commercial Agent

Jace graduated from The Offutt School of Business from Concordia College with Deans list honors and is a CCIM Candidate (Certified Commercial Investment Manager). Jace has had a passion for selling and working with clients since a very young age, prior to joining Horizon as a full time Commercial Agent, he started a lakes area lawncare company that included many services rendered to his clients that grew to over 30 different properties. Jace has grown up in the area and has a keen knowledge on the Fargo real estate market, driven by his number one goal of winning for his clients, and having the same energy and drive in helping people either begin or grow their business dream (vision). Jace is a cultivated and extremely motivated individual that is striving to grow and create new business on every level to this ever-expanding community.

ND License Number 10937

Brian Tulibaski, MBA

Commercial Agent

Brian Tulibaski, MBA, is a seasoned professional joining Horizon Real Estate Group as a Commercial Real Estate Agent and Real Estate Investor. With a strong background in sales and operations leadership, Brian brings over 25 years of experience in exceeding sales and profit expectations. As a father of three boys, Brian understands the importance of building a secure future through strategic investments and financial independence. His expertise and passion lie in the realms of economics, passive investing, commercial real estate, financial independence, and real estate development. Brian holds an MBA from North Dakota State University, where he honed his business acumen and leadership skills. Throughout his career, he has demonstrated exceptional abilities in P&L management, human resource management, business development, and strategic planning.

ND License Number 9607

Mark Richman

Associate Broker

Mark graduated from North Dakota State University in Business Economics and began work in commercial real estate in 1976. From 1988 through 2010 he worked with Coldwell Banker Commercial Real Estate in Fargo. Mark is a CCIM (Certified Commercial Investment Member) and a CPM (Certified Property Manager).

ND License Number 2364

Chad Bartholomay

Real Estate Salesperson

ND License Number 8931

Cole Foss

Real Estate Salesperson

ND License Number 11133

Tim Gleason

Real Estate Salesperson

ND License Number 10567

Nick Hamilton

Real Estate Salesperson

ND License Number 9631