A graduate of Cal Poly University, San Luis Obispo, David formed McCullough Landscape Architecture as a sole proprietorship in 1999 while consulting for another firm. After wife and partner, Catherine joined the business in 2001 and became Chief Executive Officer and President in 2002; the firm became a woman-owned corporation and a certified Small Business by the State of California.

With offices in San Diego and the Bay Area, McCullough creates spaces for hospitality, retail, mixed-use and institutional properties around the world. As principal landscape architect, David oversees all aspects of the design and production of firm projects at McCullough. He serves as head designer on all projects and maintains quality control on all work completed. Previous projects have earned awards and recognition in several national publications.

David finds time in his schedule to take leadership in creative organizations such as the the San Diego Architecture Foundation (SDAF) and the American Institute of Architects (AIA) local Urban Design Committee. He currently serves as Chair of the Pecha Kucha Night program, which is on its sixth successful year. He finds it inspiring to take part in such a diverse mix of creative minds while bringing them together to share with the public their wild ideas.

In addition, recently David was appointed by San Diego Mayor Kevin Faulconer to serve on the Historical Resources Board as Chair, which governs the identification, protection, retention and preservation of historical sites in San Diego. Concurrently, he has been invited to serve on the city’s Code Monitoring Team (CMT).

David’s design philosophy is centered around merging context and creative passion with grit, soul, and style. The firm takes every project with a uniquely creative approach that centers around diversity, discovery and conservation. David feels it’s important to engage the human spirit with nature, while expressing empathy.

Recent projects include a large waterfront development in Shanghai, China, Seaport San Diego redevelopment, several multifamily projects in Calgary and Vancouver, along with other notable hospitality, entertainment, and mixed-use collaborations in the Western US and Canada.

David Willis is Chief Strategy Officer for Fontainebleau Las Vegas, a luxury resort and casino created by Fontainebleau Development. A respected and data-driven executive, Mr. Willis is responsible for driving the long-term success of Fontainebleau Las Vegas, overseeing business development, market analysis, and strategic planning to enhance growth and profitability. His role involves collaboration across departments to ensure alignment, while leading innovation initiatives and identifying new opportunities to maintain the resort's competitive edge in the local and global luxury market.

Mr. Willis brings a proven record in the integrated resorts industry to Fontainebleau Las Vegas, having previously served as Chief Commercial Officer and Chief Strategy Officer for Australia-based Crown Resorts. At Crown, he developed and launched the company’s first-ever corporate strategy and spearheaded a $500 million redevelopment program set to unfold over the next three years. He also built and implemented Crown’s revenue growth strategy, focusing on loyalty and CRM redesign, premium gaming, revenue optimization, and strategic partnerships.

Prior to Crown, Mr. Willis spent nearly nine years at The Cosmopolitan of Las Vegas, where he played a pivotal role in shaping the resort’s success. He helped create and implement its strategic plan, leading to a fourfold increase in EBITDA. He transitioned the analytics function from passive reporting to an active business partner, leveraging data-driven insights to drive performance. Additionally, he was part of the small team responsible for The Cosmopolitan’s sale process and supported its initial transition to an MGM Resorts International property. Beyond operations, he also advised ownership on due diligence for strategic hospitality acquisitions. Mr. Willis began his tenure at The Cosmopolitan as a Strategic Planning Analyst and advanced to Senior Vice President of Financial Planning and Analysis.

Mr. Willis is recognized by his peers as a leader in guest acquisition and retention, known for building impactful partnerships and executing innovative marketing campaigns that drive integrated resort profitability. His data-driven decision-making, combined with close collaboration with operational stakeholders, has consistently enhanced the effectiveness of strategies across all areas of the business.

Mr. Willis is a graduate of Florida State University.

A Las Vegas native and heir to a storied hospitality family, Lorenzo Doumani has spent a lifetime shaping the landscape of luxury hospitality, real estate development, and historic preservation. Beginning his career in the family’s iconic resort properties, he gained firsthand experience under the influence of industry visionaries including Jay Sarno and Steve Wynn.

Doumani earned his undergraduate business degree from USC and later received his MBA from UCLA. Combining formal business training with hands-on development experience, he has successfully designed, developed, and built several luxury estates in Beverly Hills and Los Angeles, earning a reputation for blending timeless architecture with modern luxury. In 2000, Doumani founded Majestic Resorts, focusing on the acquisition, revitalization, and repositioning of landmark hospitality assets while overseeing significant real estate and resort transactions throughout the region. His career has been defined by a passion for preserving historic properties while creating forward-looking destinations that honor the rich heritage of the communities they serve.

Among his most notable preservation projects is the restoration and reimagining of the historic Park Hill Estate, originally built in 1923 by C.F. DeWitt, the developer credited with creating the original Hollywoodland sign. The estate stands today as a showcase of Old Hollywood glamour thoughtfully integrated with contemporary luxury and amenities.

From the legendary La Concha and El Morocco, to the iconic Tropicana, Golden Nugget, and the famed Peppermill restaurant, the Doumani family’s influence has been woven into the fabric of Las Vegas for generations. Today, Lorenzo continues that legacy through Majestic Resorts, combining a deep respect for history with an entrepreneurial vision for the future of luxury hospitality, real estate, and destination development.