Meet Our team
Brad Grossman
Principal & Executive Project Manager
Brad Grossman, a native New Yorker, is the Founding Principal and Executive Project Manager of 1640 Management. A graduate of the University of Albany with a Bachelor’s Degree in Economics, Brad’s journey into real estate and construction began in 2003 when he purchased his first rental property on Long Island’s North Shore. This experience sparked his passion for the industry, and in 2004, he took the next step by purchasing land in Southampton to build his first spec house.
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Renata Kiszkova
Lead Interior Designer and Finish Manager
Renata brings a strong background in architecture and design to the 1640 Management team. With over 15 years of experience working with Pam Glazer Architect, Mbley Handler Interior Design, and George E. Vickers, Renata has honed her expertise in project management and design coordination. Renata joined 1640 Management and quickly took the lead on several high-profile projects. Her design experience fosters a strong relationship with the design team, allowing her to expertly navigate even the most complex details. With an impeccable eye for detail, Renata oversees every step of the process, from construction to completion, ensuring a seamless and efficient workflow throughout each project.
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Cindy Leon
Office Manager and Account Manager
Cindy is the backbone of our office operations, overseeing all accounts and ensuring smooth communication between clients, subcontractors, and the design team. With a Bachelor’s Degree in Business Management and Marketing, Cindy has been an integral part of 1640 Management from the very beginning, helping ensure that all stakeholders have what they need and that expectations are met consistently. Her organizational skills and proactive approach are crucial in maintaining the flow of each project, ensuring every detail is covered.
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Amanda Switzer
Landscape Designer
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Andres Berrio
Lead Carpenter & Site Manager
Andres is the Lead Carpenter at 1640, bringing 20 years of hands-on experience in fine carpentry and custom home building. With a sharp eye for detail and a commitment to craftsmanship, he oversees every stage of the build process—from framing and finish work to on-site problem solving. Known for his precision and leadership, Andres ensures each project reflects the company’s standard of excellence while keeping the team motivated and on track. Clients and colleagues alike value Andres’ ability to turn complex design ideas into reality with skill, creativity, and efficiency.
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Alex Rayo
Carpentry & Site Manager
With over a decade of carpentry experience in the Hamptons, Alex Rayo combines traditional craftsmanship with modern construction techniques. His expertise spans interior carpentry, framing, trim work, renovations, new builds, and house management. Alex is known for his attention to detail, innovative approach, and commitment to bringing each client’s vision to life with honesty, efficiency, and exceptional quality.
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Ismael Penafiel
Property Management & Maintenance
Ismael has been part of our team for over three years, providing reliable property management and maintenance support across multiple projects. With a strong focus on attention to detail and client satisfaction, he oversees routine maintenance, coordinates repairs, and ensures that all properties are kept in excellent condition. Ismael’s hands-on approach and thorough understanding of building systems make him an invaluable member of our team.
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Melissa Gundogan
Assistant Project Manager
Melissa is our Assistant Project Manager at 1640 Management, bringing a fresh perspective and a strong foundation in architectural design and project coordination. A graduate of SUNY Delhi with a degree in Architecture, she previously interned at Leroy Street Studio in New York City and worked with NYSERDA, where she collaborated with the Mayor of Delhi, NY on sustainability-focused initiatives. With a passion for thoughtful design and community impact, she’s excited to grow her career in the AEC industry.
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Marites Palis
Bookkeeper & Accounts Payable
Marites is a highly skilled and detail-oriented Bookkeeper and Accountant with extensive experience managing financial and administrative operations across the construction, finance, real estate, and retail industries. She specializes in bookkeeping, payroll processing, financial reporting, and tax preparation, consistently delivering accurate and timely results. Known for her meticulous attention to detail and strong organizational skills, Marites brings a proactive approach to financial management that supports efficient operations—particularly within the fast-paced environment of the construction industry.
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