
Confident Offers Without the Costly Guesswork
Smart negotiation helps you protect your budget while still giving your offer the strength it needs to stand out.
Kinga Andrzejewska is the Managing Broker and owner of Open Key Realty, serving buyers, sellers, investors, and developers throughout Northbrook, Glenview, Deerfield, Mount Prospect, Park Ridge, Arlington Heights, Prospect Heights, and surrounding Chicago suburbs.
With nearly 20 years of real estate experience, Kinga specializes in helping homeowners sell for top dollar while helping buyers make smart, informed decisions in today’s competitive market. Her expertise includes residential real estate, luxury homes, downsizing, estate sales, investment properties, new construction, commercial real estate, and development opportunities.
Kinga Andrzejewska has been our go-to real estate agent for the past 10 years, and once again, she helped us find another fantastic investment property—this time in Mount Prospect.
We purchased it below market value and saved a significant amount of money that we can now invest in renovations. Kinga has access to great deals and consistently ensures we get the best opportunities.
We highly recommend her to anyone looking to buy, sell, or invest in real estate.
Thank you, Kinga, for your continued outstanding service!
I have worked with Kinga Andrzejewska multiple times over the years, and I cannot recommend her highly enough!
Kinga has been instrumental in helping us purchase several investment properties, expertly manage them, and find reliable tenants. Thanks to her knowledge and guidance, these properties have significantly increased in value over time.
Her professionalism, dedication, and deep understanding of the real estate market make her an invaluable partner for any real estate investor.
Whether you’re buying, selling, or looking for investment opportunities, Kinga is the real estate agent you want by your side!
We couldn’t be more thrilled with our experience working with Kinga throughout our entire real estate journey!
From the very beginning, Kinga was incredibly dedicated to helping us transition from our townhome to our new house.
First, she helped us find our dream home. Once that was secured, the focus shifted to getting our townhome ready for the market. She took the time to walk us through every step of the process, including recommending trusted contractors to make key updates.
What really stood out was the personal touch she brought through staging. Her attention to detail was phenomenal and made a huge difference in how our home was presented.
We were amazed at how quickly everything moved. After our very first open house, we received an offer right away! It’s clear that the staging and strategic planning paid off, as our townhome sold quickly—even during the fall market.
We are grateful for Kinga’s professionalism, guidance, and unwavering support throughout the entire process.
We highly recommend her to anyone looking to buy or sell a home!

Smart negotiation helps you protect your budget while still giving your offer the strength it needs to stand out.

When you choose an agent with the right experience, communication style, and local knowledge, you give your home sale a stronger foundation from the very beginning.

Northbrook, IL, gives residents and visitors a polished North Shore experience with plenty of ways to enjoy a day close to home.