Travel and Leisure Expert Witnesses: 2

Dennis Gemberling, CHA, CFBE, FMP, FCSI, President and Founder of Perry Group International, has over 35 years of experience in the Hospitality Management industry. His experience includes managing, operating, and consulting on full-service, limited-service, extended-stay, all-suite, condo and timeshare hotels and resorts, casual, fine-dining, and quick-service restaurants, bars and nightclubs, catering and special event facilities, casinos, and mixed-use real estate. 

Mr. Gemberling has held prior positions for different owners, operators, and chains as Senior Vice President, General Manager, Director of Food & Beverage, and Restaurant Unit Manager. He has been retained on over 400 projects with typical values in the $1 million to $75 million range and revenues in the $1 million to $100 million range both nationally and internationally. His many clients have include among others Biscuits & Blues, Cantina’s, Chevy’s, Choice Hotels, Embassy Suites, Hampton Inns, Hilton, Holiday Inns, Hooter’s Casino, Hyatt, Marriott, McDonald’s, Microtel Inn & Suites, Outback Restaurants, Radisson, Residence Inns, Signature Resort, Sizzler, Sonic Drive-Ins, Starbucks, Starwood, Sheraton, Togo’s, Wendy’s, and Willie Mays Skybox Lounge. 

Litigation Support: Dennis Gemberling is a Certified Hotel Administrator, Certified Food and Beverage Executive, Certified Foodservice Management Professional, and Certified Food Safety Manager. He offers expert witness services to attorneys for plaintiff and defendant cases on a variety of Hospitality-related claims. He is a Professional Member of Foodservice Consultants Society International and the Forensic Expert Witness Association. Mr. Gemberling also provides expertise as a Court Appointed Receiver and Interim Property Manager and is currently the Past President and a Board of Director for the California Receivers Forum – Bay Area Chapter. 

Areas of Expertise:

View Dennis Gemberling's Consulting Profile.

Bruce Weiner is a Princeton-educated computer scientist and electrical engineer with more than 35 years of experience in software engineering, AI systems, and enterprise technology management. He provides expert consulting and testimony in disputes involving software development, AI and machine learning models, cloud and API architectures, and the performance of complex software projects.

Mr. Weiner has been retained in U.S. District Court, the PTAB, state court, and arbitration matters. He has served as both a consulting and testifying expert in more than two dozen engagements, addressing software engineering standards, algorithmic and patent infringement, trade secret and copyright analysis, and contract performance issues.

Examples of expertise:
• Artificial Intelligence & Machine-Learning Models
• Software Design, Development Standards & Source Code Review
• Patent, Trade-Secret & Copyright Disputes
• Contract, Vendor & Software-Project Performance
• Cloud, Database & API Systems
• Internet Technologies

Representative experience includes analyzing AI-weighted models used in transportation and automation platforms, evaluating airline, travel, and loyalty program software, assessing enterprise cloud and API systems, and reviewing project performance and contract delivery disputes in complex software implementations. His opinions combine technical depth with clear, factual explanations of how software and AI systems operate, making them accessible to attorneys, judges, and juries.