Our Team

Robert Gertz has spent more than two decades delivering exceptional service to high-profile clients. Through his experience in luxury branding, event design and production, estate management, and comprehensive real estate services, Robert envisioned the sophisticated, upscale service niche that became Modern Butler. His signature client care – personal, creative, communication-driven, intuitive, and detailed – became the guiding mission for the company that has earned Robert and Modern Butler a reputation for unrivaled lifestyle management.

Internationally educated, with a lifetime of experience in the rich traditions of European luxury hospitality, Mario Seiler has worked with the finest hotels and individuals of distinction worldwide. His comprehensive knowledge of finance, personnel management, and seamless operations inform the core systems and day-to-day workings of Modern Butler. A global citizen and one of the most sought-after estate managers in the world, he is widely respected for his exquisite taste and legacy of impeccable service.

Modern Butler partners with Atwater Properties to provide luxury real estate services. Anthony Batarse established his name in the world of finance and mortgage lending before founding Atwater Properties in 2010. In two decades of experience with Internet Brands Inc., Wells Fargo (Beverly Hills), and Bank of America (Compliance), he worked in mortgage underwriting, established vital relationships with Realtors nationwide, and earned the wide respect of borrowers and bankers for his calm demeanor and professional skills. Consistent professional and personal service has earned Atwater Properties a variety of awards as well as the respect of clients and colleagues.