The Story
More Than Just
an Agent
William Morrissey is a real estate broker with O’Neil Property Group, serving clients across Kendall County and the western suburbs of Chicago. William brings a professional, detail-oriented approach to every deal, ensuring his clients are well-informed and confident throughout the buying or selling process.
With a strong foundation in local market knowledge and a focus on delivering exceptional service, William is committed to making every real estate experience a positive one for his clients.
Get to Know William
The Personal favorites
Food
Bagels
Anytime of day!
TV Show
The Office
“Get busy living, or get busy dying.”
Local Spot
113 Main
William LOVES this place.
Favorite Team
Chicago Bears
Suffering is part of the experience.
hobbies
Gardening
Decaf from Dunkin. It’s the only way.
Candy
Kit Kat
Give me a break!
Areas of Expertise
🏠
Residential Sales
Expert guidance for buyers and sellers across Yorkville, Oswego, Plano, Montgomery, and surrounding communities.
📊
Market Analysis
In-depth local market knowledge and data-driven pricing strategies that maximize your return.
🚚
Relocation
Helping families and professionals relocate to the western suburbs with comprehensive support.
Success Stories
What Clients Say
"
“Working with O’Neil Property Group was hands-down one of the best decisions my wife and I have ever made. William made the process seamless from start to finish.”
Jason M.
Yorkville Buyer
"
“William and his team sold my house very quickly and for more than I expected. His marketing strategy was incredible — professional photos, social media, the works.”
Emily R.
Oswego Seller
"
“What a great experience we had selling our home in Plano with O’Neil Property Group. William’s local knowledge is unmatched. He knew exactly how to position our property.”
Sarah & David K.
Plano Seller
William's Active Listings
Get in Touch
Work With
William
Whether you’re buying, selling, or just exploring your options — William and the OPG team are here to help. Fill out the form and we’ll be in touch within 24 hours.