Meet Our Partners

Bart Olszewski – Team Leader

Licensed Real Estate Broker/Owner

Bart Olszewski’s name is synonymous with Queens real estate market, where his well-established reputation and unmatched marketing knowledge have made him a frontrunner in New York’s residential real estate industry. As the leader of one of Keller William’s top teams Bart prides himself on his personal service and attention to his clients’ every detail, which has lead him to a large base of referral and repeat clients.

Prior to making the decision to become a real estate broker Bart worked as a manager of the famous – Moscot Opticians. His college days took him from NYC College of Technology to school of business at Baruch College. Marketing, business and sales background makes real estate a fun challenge, “I strive to bring a fresh approach to an industry that is going through a major change”.

In his ten plus years in real estate Bart has received all possible awards. From being top selling associate while the firm was Weichert Realtors to the prestigious Gold Award in 2013 and incredible Platinum Award with Better Homes & Gardens for 2014, Bart is the only agent in NYC to receive either! Now with Keller Williams Bart has already received Top Listing Agent Awards.  Bart was the quoted in NYTimes, interviewed on NY1 and was the featured broker on an episode of NBC’s “Open House NY” and credits the experience as one of the reasons he decided to work with video as part of his marketing package. Trulia lists him as one of the Top 100 Trulia Agents in all of New York State..

“Crossfiter, scuba diver, skier with a serious passion for reading, learning and spending free time with my wife and two daughters. # 1 Dad is a certification I’m striving toward daily. Working in the melting pot that is Queens a second language also comes in handy. In my case it’s Polish.”

Bart Olszewski    917-449-4101     [email protected]

(Licensed as Bartosz Olszewski)


Michael Marek – Sales Partner

Licensed Real Estate Broker/Owner

It gives us great pleasure to introduce Michael Marek to our Sold by Bart Team.
He is a highly motivated and competent Licensed Real Estate Agent specializing in helping buyers achieve their goals. His infectious enthusiasm for all aspects of the real estate transaction make him a perfect guide in your journey to home ownership. In the melting pot that is Queens, being bilingual – English & Polish in his case – helps. Michael is the ideal agent in your search. Contact him today!

Michael Marek    917-455-2950     [email protected]

(Licensed as Michal Marek)


Danielle Eppich- VP of Operations

Licensed Real Estate Salesperon








VP of Operations at Sold by Bart Team,  her many duties consist of ensuring a seamless transaction process for all of our valued clients – from initial appointments through the close of escrow. With an expert approach to managing the ever-important details for dozens of properties at one time, Danielle utilizes a vast array of finely honed skills to ensure Sold by Bart Team continues to efficiently meet client’s residential real estate goals. Danielle’s diligent work ethic, tenacious attitude and comprehensive understanding of the industry make her a vital member of Sold by Bart Team. Prior to joining the team Danielle worked for Better Homes & Gardens FH Realty where she proved her ability to run the office. Her efforts resulted in measurable success for the firm.

Danielle Eppich    917-285-4740     [email protected]


Dave Van Aken – Sales Partner

Licensed Real Estate Salesperson


Light fixtures… $250. New sofa… $749. Having your first home-cooked meal in your new place… priceless. There is no better feeling than to have a place all your own. I’m David Van Aken, licensed real estate salesperson, lifelong Middle Village resident and graduate of Forest Hills High School. I look forward to sharing my knowledge of Queens with you. Whether you’re buying or selling a house, co-op, or condo, your satisfaction is my ultimate goal.

Nothing is ever too much trouble for me. I am energetic, organized, and happy to help. Every call, email, or text is answered as soon as possible. I’ll make your search a pleasant and exciting experience. If you’re selling, I’ll keep you well-informed at all times and get you the best price possible. To achieve this goal, I’ll use customized video along with print and online advertising. As part of the successful Sold by Bart team, we bring the fun as well as the knowledge of real estate that will make your experience simple and effortless.

In my free time you’ll likely find me on the golf course, unwinding with a glass of wine on the back deck of my house, or spending time with my son. The wineries on the North Fork of Long Island is where I like to visit when my wife and I take a break from work and unwind. Tammy is also part of our real estate team here, and that makes work even better for me. Work and play, it’s all about balance. Finding the perfect fit for your needs with the smoothest transition is my promise to you, so you can enjoy what makes you happiest. I can also give you some great suggestions for what to drink in NOFO!

Dave Van Aken    917-602-0319    [email protected]


Magdalena Wolowicz – Sales Partner

Licensed Real Estate Salesperson


Magdalena Wolowicz    917-716-4044    [email protected]


Magdalena Banasiak – Sales Partner

Licensed Real Estate Salesperson

Magda 2new

Magdalena Banasiak    347-602-3895    [email protected]


Edyta Wilczynski – Sales Partner

Licensed Real Estate Salesperson

Edyta Wilczynski    646-841-3871     [email protected]

Wioletta Bednarczuk – Sales Partner

Licensed Real Estate Associate Broker

Wioletta Bednarczuk   917-608-0458     [email protected]

Alexio Boubev – Sales Partner

Licensed Real Estate Salesperson

Alexio Boubev   347-617-6558   [email protected]

Ema Avezova – Sales Partner

Licensed Real Estate Salesperson

Ema Avezova  917-693-8465  [email protected]

Wiktoria Faron – Sales Partner

Licensed Real Estate Salesperson

Wiktoria Faron   845-542-4276   [email protected]

Tammy Van Aken – Sales Partner

Licensed Real Estate Salesperson

Believe me, I’m listening! As a lifelong resident of Maspeth and Middle Village, I can answer your questions. Being a graduate of St. Francis Prep and St. John’s University, I am a devoted Queens resident.

If you’re selling your home, we’ll use proven methods to market your property and get you the best exposure possible. Advertising, photos, videos, and my vast network of connections will bring you the qualified buyers you’re looking for. When you list your home with us, you can be sure we are working hard for you every single day.

If you’re looking to purchase a home, you won’t find a more honest and easy person to work with. It’s a welcome challenge for me to search and find you the perfect place. I will keep the lines of communication open at all times and make home hunting a pleasant experience.

During my career, I’ve acquired the business etiquette, diplomacy and work ethic required to efficiently navigate the real estate market for you. I am passionate about working with people. It’s more than my job – it is my pleasure and privilege.

Tammy Van Aken    646-808-5245      [email protected]


Joanna Olszewska – Sales Partner

Joanna – aka Asia – is our buyer representative as well as administrative assistant. Bilingual – she is fluent in Polish – Joanna will assist you in finding your dream home. Behind the scenes she works on many of the administrative tasks as well as helping out with videos and social media. Graduate of the prestigious Warsaw School of Economics, she has the vast knowledge of Real Estate and related fields. Her easy going personality is the perfect complement to Bart’s driver personality.

Joanna Olszewska     646-309-1001      [email protected]