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Quin O'Brien

Quin O'Brien
Real Estate Agent (Managing Broker)
Grayslake IL

Managing Broker (IL: 471001526)

31 years experience

REALTOR® 2 Active Listings Serves Lake County, IL
View on Realtor.com

Contact Information

Brokerage
4 Sale Realty Advantage
Office Address
1365 Locust Ct
Grayslake, IL  60030-3724
(Lake County)
Office Phone
847-601-9359
Office Fax
Mobile
847-298-4663
Email
quin*@*****.com
Show Email for $5

Service Areas

Round Lake: IL Grayslake: IL Libertyville: IL Third Lake: IL Wauconda: IL Round Lake Park: IL Gages Lake: IL Hainesville: IL Gurnee: IL Grandwood Park: IL Wadsworth: IL Old Mill Creek: IL Park City: IL

About Quin O'Brien

Quin O'Brien is a seasoned real estate professional with nearly three decades of experience in the industry. Having founded his brokerage in January 2000, he has played a pivotal role in shaping the local real estate landscape. Originally from Huntley, Illinois, Quin has dedicated his career to serving clients in the greater Chicago area.

In pursuit of new horizons, Quin sold his brokerage to relocate to the Canary Islands, where he now splits his time between Gurnee, Illinois, and Spain. He holds two prestigious designations: Certified International Property Specialist (CIPS) and Certified Residential Specialist (CRS), enhancing his expertise in both domestic and international real estate markets.

Quin is also conversational in Spanish, allowing him to connect with a diverse clientele.

Lake County, IL Real Estate Market Analysis (Single Family Homes)

$760,157
Avg. Listing Price
From Quin's portfolio
3.6 / 3.0
Avg. Beds/Baths
Typical property size
2,826 sf
Avg. Square Footage
Interior living space
1510
Active Listings
Current inventory

Lake County, Illinois represents one of the most dynamic and geographically diverse real estate markets in the Chicago metropolitan area, stretching from affluent lakefront communities to rapidly growing suburban developments. With 3,982 actively licensed real estate agents operating throughout the county, this market demonstrates remarkable depth and professional expertise that reflects the region's complex housing landscape and substantial transaction volumes.

The market's sophistication becomes evident when examining agent connectivity and professionalism—all 3,982 licensed agents maintain email addresses, indicating a tech-savvy professional community well-equipped to handle modern real estate transactions. This level of digital engagement reflects the county's proximity to Chicago's business districts and the increasingly complex needs of buyers relocating from urban centers to suburban communities like Highland Park, Vernon Hills, and Grayslake.

Major Lake County, Illinois Real Estate Markets

The county's real estate landscape divides into distinct regional markets, each with unique characteristics and price points. The eastern lakefront communities, including Lake Forest, Highland Park, and Winnetka, command premium prices due to their proximity to Lake Michigan and established wealth, while western communities like Round Lake Beach and Grayslake offer more affordable options for families seeking quality schools and suburban amenities. Waukegan, the county seat, provides urban-style living with ongoing revitalization efforts attracting both investors and first-time homebuyers.

Central Lake County communities such as Vernon Hills, Libertyville, and Mundelein represent the sweet spot for many buyers, offering excellent school districts, corporate headquarters proximity, and diverse housing stock ranging from starter homes to executive properties. These areas have experienced particularly strong growth as remote work arrangements allow professionals to prioritize space and community amenities over commute times to downtown Chicago.

Market Dynamics and Geographic Complexity

Lake County's real estate market operates with surprising independence from Chicago's urban core, driven by local employment hubs including Abbott Laboratories, Baxter International, and numerous corporate campuses along the I-94 corridor. This economic diversity creates multiple micro-markets within the county, where agents must understand everything from lakefront luxury properties exceeding $2 million to affordable condominiums and townhomes serving young professionals and retirees.

The market's complexity increases due to varying municipal regulations, school district boundaries, and transportation access points that significantly impact property values. Agents frequently navigate between communities where identical homes might vary by $100,000 based solely on school district assignments or proximity to Metra stations, requiring deep local knowledge and extensive professional networks to serve clients effectively.

Why Businesses Need Lake County, Illinois Agent Contact Data

Real estate service providers, from mortgage lenders to home improvement contractors, find Lake County's agent database invaluable due to the market's high transaction velocity and premium service expectations. With nearly 4,000 agents actively working in a geographically compact area, businesses can efficiently reach decision-makers who influence significant residential and commercial real estate investments throughout the region.

The universal email connectivity among Lake County agents enables targeted marketing campaigns for financial services, technology platforms, and professional development opportunities that align with the market's sophisticated clientele. Companies launching new real estate technologies or services often pilot programs in markets like Lake County, where agent professionalism and client expectations drive rapid adoption of tools that improve transaction efficiency and customer experience.

Current Property Listings

As of 2/15/2026, Quin O'Brien has 2 properties for sale in Grayslake and surrounding areas.

$223,250

Listed 2025-11-05

91 Lippincott Rd
Fox Lake, IL  60020

Beds: 2.0
Baths: 1.0
Sq Ft: 1,100
Lot: 10,019 sf
Single Family Map
View Full Details

$439,000

Listed 2025-10-23

2013 Castlewood Rd
Highland Park, IL  60035

Beds: 2.0
Baths: 1.0
Sq Ft: 1,138
Lot: 14,593 sf
Single Family Map
View Full Details

Current Property Rentals

Quin O'Brien currently has no rental properties available in Grayslake and surrounding areas. Check back later.