The Top

Real Estate Team

in Chicagoland!

The remarkable success of the Sarah Leonard Team is no surprise.


With offices in Schaumburg, St. Charles, Sugar Grove, and Algonquin, the team delivers personalized support to every client, making each one their top priority.


This unwavering commitment is reflected in their impressive achievement of closing more than 500 homes last year!

As Seen On


500+

Home Sold Last Year

17

Agents

12

Dedicated Staff

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Client Testimonials

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"I bought and sold with the Sarah Leonard Team and the experience couldn’t have gone better! Sarah gave me great guidance during the pre-listing process. Sarah suggested which items would be worth addressing with our budget and timeline, and her team helped me find contractors to fix up a couple of things before going on the market. Suzi Warner knocked it out of the park with her marketing and open house strategy. We had multiple offers after one weekend! Suzi was always responsive to our questions and just made everything happen. Our Transaction Coordinator Sharon also was great at keeping us in the loop as we hit different milestones in the sale process. My partner and I also bought it with Sarah. I’m very grateful that she kept us level-headed and didn’t let us overpay for a home. She also really encouraged us to do our due diligence during the inspection period, and it ended up saving us from a potential money pit. We ended up with a home that was perfect for us! There were a lot of moving parts in this process, and everyone that the team connected us with was also fantastic in their role. From our lender Frank, our attorney Dan, the photographer, the movers, the handyman, and our home inspector - everyone was outstanding through and through. The Sarah Leonard Team truly made a stressful transition as easy as possible, and I’m so grateful! 10/10 will recommend it."

ALLISON R.

Our Team's Properties

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Neighborhoods

Algonquin
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Bartlett
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Crystal Lake
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Elgin
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Geneva
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Batavia
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OUR TEAM

Stefanie D'Agostino
Stefanie D'Agostino
Broker

License ID: 475.172406

Company: The Sarah Leonard Team

Tel: +1(312) 320-3116

With over a decade in real estate, more than 300 homes sold, and over $100 million in sales volume, Stefanie has built a reputation as a trusted, top-producing agent known for delivering a personalized, elevated client experience.

 

Before real estate, Stefanie spent many years as a classroom teacher, developing the communication, guidance, and advocacy skills she brings to her clients today. Combined with her background in performing arts, she has a natural ability to connect, communicate, and make people feel confident and supported every step of the way.

Having grown up on the South Side of Chicago and now raising her family in St. Charles, Stefanie offers extensive knowledge of both the city and surrounding suburbs. She appreciates what makes each community unique and takes pride in helping clients find not just a home, but the right fit for their lifestyle.

 

For Stefanie, real estate is about understanding her clients’ lives, goals, and what matters most. Known for her approachable, detail-oriented style, she creates a seamless, tailored experience for each client and is committed to building meaningful relationships that continue long after the keys are handed over.

 

As a member of the Sarah Leonard Team at Legacy Properties, Stefanie is proud to be part of a high-performing group that shares her commitment to excellence and client care. When she’s not working, she enjoys time with her husband, their three children, and their goldendoodle—exploring St. Charles and nearby towns or heading out on their next family road trip adventure.