

About Marlene
She is committed to excellence and will ensure that her clients make the best possible move. Consistently selling in Woodstock, Cary, Fox River Grove, Barrington, Algonquin, Crystal Lake, Lake in the Hills, McHenry, and surrounding areas keeps her current on property values and negotiation tactics. She has an extensive range of information on each of the communities located in the Far Northwest Suburbs.
Transaction History
- 1 Year
- 2 Year
- 5 Year
Neighborhoods Marlene Has the Most Experience In
Marlene's Listings and Deals
Marlene's Active Listings
Awards and Designations
- NAR - National Association of Realtors
- ABR - Accredited Buyer Representative
- CRS - Certified Residential Specialist
- e–PRO - Internet Professional
- Pricing Strategy Advisor
- SFR - Short Sale & Foreclosure Resource
Other Experience
Marlene's Reviews
7/31/25Candice Meyer
Marlene Castagna is a dedicated and knowledgeable realtor and true credit to her profession. We have been lucky to have her as our agent both when buying and selling our homes. She leads you through the entire process with experience and you always know she has your best interests at heart.
7/31/25Kristine Tonkin
Marlene is the best. has always been open and honest. very concerned about customer satisfaction. she is not just your realtor but your advocate and friend don’t buy it sell without Marlene
7/31/25Hope Yeager
We have used Marlene to purchase and sell multiple homes. She provides excellent service and deep industry knowledge that makes her the perfect choice. She was hugely helpful in the purchase of my first home and was instrumental in helping me understand the transaction. I would recommend Marlene to any buyers from first time buyer to experienced buyer.
