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In the late-1990s, Jonah Bruck partnered with Lennie Weiss and formed Olympia Group, which aimed to enter the skilled nursing home business.


Jonah was key in handling all the operations at Olympia Group and is constantly seeking further opportunities to grow the business.


Within eight years, Olympia Group became the 4th largest nursing home provider in the state of Michigan, as well as the largest in the Detroit Metro market.


In 2002, Jonah Bruck and Lennie Weiss decided to diversify their portfolio, which led them to form Diamond Rock Properties, a property investment company with investments in a wide range of properties.


Jonah’s extensive knowledge, vast experience, and network connections have helped Diamond Rock Properties grow tremendously, and Diamond Rock now has $40M+ of investments in real estate, student housing, hotels, and more.


Lennie Weiss has been in the long-term care industry for over 30 years and has extensive knowledge in evaluating and picking the right deals in the right markets at the right times.


Lennie oversees and handles all the financing, revenue, and financials for Olympia Group, and both he and his operating partner, Jonah Bruck, have owned and operated skilled nursing facilities across the U.S., with revenues exceeding $150M+ per year.


Lennie’s broad range of financial knowledge, and keen insight in evaluating deals, expanded his base into owning and managing Olympia Group’s affiliated real estate company, Diamond Rock Properties.


Diamond Rock Properties currently manages a significant range of investments, including commercial and residential properties, hotels, and student housing.

Since its establishment, Michelle Mahler began working as the receptionist for Diamond Rock Properties.


After much hard work and dedication, Michelle got promoted to Executive Secretary and Personal Assistant to Jonah Bruck and Lennie Weiss.


Michelle has been instrumental in the success of Diamond Rock Properties and its execution of multiple contracts and deals and continues to help Diamond Rock Properties grow.


Michelle has been and continues to be a vital person in managing the affairs and high-pressure needs of Diamond Rock Properties, making her an essential and proud member of the Diamond Rock Family.

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Jonah Bruck
Lennie Weiss
Michelle Mahler
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