Sep Niakan

Richard Ostertag is a dedicated real estate professional with a passion for numbers, strategy, and helping his clients achieve financial success through real estate. Originally from Slovakia, Richard's journey has taken him across the globe, enriching his perspective and fueling his drive to achieve his dreams.

With a Bachelor's degree in Economics and Management from the University of Economics in Prague, Richard brings a sharp analytical mind and a deep understanding of the financial intricacies involved in real estate investing, with a specialized focus on short-term rentals and income generating properties. His experience living and working in various countries has instilled in him a global outlook and an appreciation for diverse cultures.

As a real estate investor himself—he recently closed on his 9th property—Richard's clients value his first-hand experience, in-depth understanding of real estate financials and projections, transparency, dedication, and unwavering commitment to finding the investment that matches their specific investment and personal goals. His friendly and easy-going nature makes him approachable and fosters a collaborative environment where clients feel heard and understood, and also know they are very capable hands.

Beyond real estate, Richard enjoys a healthy and active lifestyle, indulging in morning walks, weightlifting, yoga, and meditation. He's also passionate about travel, cooking, and expressing his creativity through interior design. 

Stephanie Bienstock

A true Miami Beach native, Stephanie was inspired at the tender age of 16 to become involved in the transformation of the city. Her ability to get along with everyone and instantly put people at ease made her a perfect fit for real estate. Starting as an assistant to a number of top-line producers of the time, she obtained her license at 19 years old. And, there’s been no looking back ever since.


Stephanie continued working for some of the top real estate minds of the city and gained experience working with affluent clients. This led her to finally begin selling real estate independently in the early 2000s. Since then, her exclusive focus has been luxury waterfront properties, and she has participated in the sale of over $350,000,000 in sales. A feat that has helped many discerning clients find their picture-perfect property on the water.


Stephanie is often described as an open, easy going and genuine person. Being a perfectionist, she loves being organized and well-prepared. This comes in handy for her clients, as she not only brings a sense of structure to their entire experience but also helps put things into perspective for others, giving them the clarity they need to make good decisions.


Besides striving to excel at everything she does, Stephanie loves exercising and a good cup of coffee. She’s a dedicated mom of two and wife of one who really takes enjoyment in spending time with them. Not many know that this perfectionist has ninja-fast reflexes and also packs a mean punch. So spar with her at your own risk.

Yurii Kryzhanovskyi

Thank you for visiting my profile. My name is Yuriy Kryzhanovskyi, Managing Broker of Blackbook Properties and a real estate sales top producer in the Miami area for the past 15 years.
I pride myself on keeping the buying and selling process simple and fun, being a knowledgeable guide for my clients, and negotiating to get my clients what they want at a fair price.

Michael Castner

Thank you for visiting my profile. My name is Taras Chaban, Managing Broker of Blackbook Properties and a real estate sales top producer in the Miami area for the past 15 years.
I pride myself on keeping the buying and selling process simple and fun, being a knowledgeable guide for my clients, and negotiating to get my clients what they want at a fair price.

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This is Sep's description added on Strapi

Eric Lieberbaum

Born and raised on Miami Beach, Eric's deep-rooted connection to the city gives him an unmatched understanding of its diverse neighborhoods, unique architecture, and vibrant lifestyle.

A graduate of Florida State University with a BS in Marketing, Eric brings a strategic and creative approach to real estate. His passion for the industry stems from a lifelong fascination with Miami's ever-evolving landscape, fueled by his love for exploring new developments and experiencing the city's dynamic social scene.

Clients appreciate Eric's adaptable nature, unwavering determination, and infectious sense of humor. His empathetic approach and natural ability to connect with people make the real estate journey enjoyable and stress-free.

Eric's ideal clients share his zest for life and appreciate his ability to balance professionalism with a genuine, friendly demeanor. Whether you're searching for properties in Brickell, the Design District, or Miami Beach, Eric's local expertise and personalized service will ensure you find the perfect place to match your lifestyle and aspirations.

When Eric isn't helping clients achieve their real estate dreams, you can find him exploring Miami's culinary scene, enjoying the beach, or staying active with fitness classes. His love for Miami's proximity to the ocean reflects his own energetic spirit and unwavering passion for the city he calls home.

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Thinking of buying a second home in Miami? Discover the best condos for rental income and lifestyle flexibility—whether you're leaning toward Airbnb-friendly investments or seasonal vacation stays.

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New blog 27.06.25

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Midtown Park by PROPER: All about the new Miami pre-construction condo between Midtown, Wynwood & the Design District



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