About Us

Insurance as exceptional
as the people it's for.

In a world filled with off-the-shelf products and thinking, Dayton Ritz + Osborne decidedly differs. Our objective is not to sell you insurance, but to deeply satisfy you with solutions meticulously customized to meet your needs. With roots in the Hamptons dating back to 1875, we have a depth of knowledge that makes us the area’s preeminent experts.

three boats docked in the Hamptons

Custom coverage, yes.
Luxury service, absolutely yes.

At Dayton Ritz + Osborne, customizing coverage starts with thoroughly understanding your needs and risks. So we’ll ask you many questions, then we’ll ask even more. Because we’re disciplined in our approach to complex risk, we’re able to arrive at simple, elegant solutions. We’re also rigorous in our approach to service. While you’re always welcome to call us for any reason, chances are we’ll contact you first.

red Ferrari


An entire world of coverage.

Many of our clients initially come to us to cover their home in the Hamptons. They soon realize we can also bring valuable insight to protecting other assets around the world. We have trained professionals on staff in each of the concentrations below. Their expertise is coordinated by the dedicated specialist who will manage your portfolio.

Open concept living room with a beachfront view


You’ve worked diligently to earn your cherished Hamptons home and valuable toys. We’ll make sure they’re all well protected. As specialists in flood insurance, we’ll explain the coverage you may need and answer your questions on this important topic.

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Our expertise includes a depth and breadth of knowledge of commercial concerns. As with our personal solutions, this coverage is tailored to meet your particular needs.

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Many professionals, all with
one objective: excellence.

Our clients benefit from the expertise of many highly trained individuals at Dayton Ritz + Osborne. Whether we cover just your home in the Hamptons – or also your residence in Manhattan, your Maserati, your Chris-Craft, and your business – you benefit from the collective wisdom of our entire staff.

trophies in front of a wooden wall

Our Team Is Ready to Help

Agency Principals

  • Card image
    John McGuirk
    VP Sales/ Marketing,
    East Hampton
    (631) 907-3102
    View Bio
  • Card image
    Frederick W. Ritz III
    VP Private Client Group
    (631) 907-3114
    View Bio
  • Card image
    Jeff Brown
    VP Commercial Lines
    East Hampton
    (631) 907-3103
    View Bio
  • Card image
    Ava Lattari Warren
    VP Personal Lines
    (631) 907-3163
    View Bio

New Business / Sales

Claims Department

Private Client Department (Personal Lines)

Personal Lines Department

Commercial Lines Department

Accounting Department


"We make a living by what
we get, but we make a life by what we give."
-Winston Churchill

We wholeheartedly agree with Churchill.  For many decades, Dayton Ritz + Osborne has devoted considerable resources to worthy nonprofits.  To determine which organizations to support, we often turn to our clients for guidance and advice.

"Thank you" written in blue ink cursive