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Mari-Jo Koval

Mari-Jo Koval
Real Estate Agent (Broker Sales)
Marco Island FL

Broker Sales (FL: 3007171)

42 years experience

REALTOR® 2 Active Listings Serves Collier County, FL
View on Realtor.com

Contact Information

Brokerage
Premier Sotheby's International Realty
Office Address
760 N Collier Ste 101
Marco Island, FL  34145
(Collier County)
Office Phone
239-642-2222
Office Fax
Mobile
239-253-4704
Email
mari*******@*****.com
Show Email for $5

Service Areas

Lely: FL Lely Resort: FL Naples Manor: FL Verona Walk: FL Copeland: FL Everglades: FL Goodland: FL Marco Island: FL Marco: FL Naples: FL

About Mari-Jo Koval

**Mari-Jo Koval, Broker Associate GRI CRS**

Mari-Jo Koval joined the Marco Island community in 1998, relocating from Naperville, Illinois. With a real estate license obtained in 1984, she brings a wealth of experience to the Sandlin Team, where she has consistently demonstrated her expertise in corporate relocation, design, construction, and the marketing of custom homes. Her exceptional ability to listen to clients and fulfill their needs sets her apart in the industry.

Recognizing that today’s consumers expect a higher standard of service and accountability, Mari-Jo is proud to be part of the Sandlin Team. This collaborative group of skilled professionals and licensed Realtors ensures that every aspect of the real estate transaction is managed effectively, providing clients with the communication and results they deserve.

The Sandlin Team has earned a reputation for excellence, reflected in our high rate of repeat and referral business. With over $1 billion in sales since 1982, we are the leading team in sales volume in the Marco Island area. Our success is attributed to our innovative marketing strategies, technological expertise, and a strong presence in the market.

Purchasing property in Marco Island and Naples is about embracing a lifestyle. Whether you envision a home with direct access to your boat, a beachfront condo, a cozy retreat, or a luxurious estate, we are here to help you find your ideal property. Our extensive experience in the local market allows us to assist buyers in realizing their dreams, whether for immediate enjoyment or future investment.

At the Sandlin Team, we prioritize understanding our clients’ unique needs. Our REALTOR® partners are well-versed in the local market, and we are committed to delivering professional expertise throughout the buying process. This includes presenting properties that meet your criteria, providing unbiased assessments of communities, negotiating favorable terms, and closely monitoring your transaction until closing. Our dedication continues even after the sale, as we strive to earn your trust and become your REALTORS® for life.

Collier County, FL Real Estate Market Analysis (Single Family Homes)

$2,101,285
Avg. Listing Price
From Mari-Jo's portfolio
3.4 / 3.1
Avg. Beds/Baths
Typical property size
2,622 sf
Avg. Square Footage
Interior living space
4852
Active Listings
Current inventory

Collier County, Florida represents one of Southwest Florida's most dynamic and exclusive real estate markets, anchored by Naples and stretching from the pristine beaches of the Gulf Coast to the vast wilderness of the Everglades. This diverse market attracts luxury buyers, retirees, and seasonal residents who drive consistent demand across price points, creating opportunities that extend far beyond traditional residential sales into commercial development, vacation rentals, and agricultural properties.

With 15,791 actively licensed real estate agents operating throughout the county, Collier County maintains one of the highest agent-to-population ratios in Florida, reflecting both the market's complexity and its lucrative nature. What's particularly noteworthy is that all 15,791 agents maintain current email contact information, indicating a tech-savvy professional community that actively engages in digital marketing and communication strategies essential for today's real estate environment.

Major Collier County, Florida Real Estate Markets

Naples dominates as the county's primary real estate hub, with its downtown core, beach communities, and exclusive golf course developments like Pelican Bay and Port Royal commanding some of Florida's highest property values. The city's luxury market extends into surrounding areas including Bonita Springs, which straddles the Lee-Collier county line, and eastward communities like Golden Gate and Lely Resort, offering more accessible price points while maintaining the Naples lifestyle appeal.

Beyond Naples, Collier County encompasses diverse markets including Marco Island's high-rise condominiums and waterfront estates, Immokalee's agricultural and working-class communities, and the emerging Ave Maria planned community. The Eastern Collier region, including areas near Everglades City, presents unique opportunities in eco-tourism and rural properties, while the Estates area offers large-lot homes popular with buyers seeking privacy and space.

Market Dynamics and Geographic Complexity

Collier County's real estate market operates on distinct seasonal rhythms, with peak activity during winter months when seasonal residents and tourists drive demand, followed by slower summers that often present opportunities for locals and investors. The market's geographic diversity creates multiple micro-markets, from beachfront condos starting at seven figures to inland single-family homes, rural acreage, and commercial properties serving the county's tourism and agricultural industries.

Environmental factors significantly influence development patterns, with wetlands preservation, hurricane considerations, and flood zones creating complex regulatory environments that require specialized local knowledge. This complexity, combined with the area's appeal to international buyers and investors, has created a sophisticated market where agents must understand luxury sales protocols, resort property management, and agricultural land transactions.

Why Businesses Need Collier County, Florida Agent Contact Data

The concentration of affluent real estate professionals in Collier County creates exceptional opportunities for B2B service providers, from mortgage companies and title services to luxury home contractors, technology platforms, and marketing agencies. These agents collectively handle billions in annual transactions and require specialized services including staging companies, photography services, legal support, and continuing education providers.

Financial services companies, insurance providers, and wealth management firms find particular value in connecting with Collier County agents who work with high-net-worth clients requiring sophisticated financial products. Additionally, technology companies, CRM providers, and digital marketing platforms can leverage these agent contacts to penetrate Florida's competitive real estate technology market, while home service businesses can build referral networks essential for success in this relationship-driven market.

Current Property Listings

As of 2/9/2026, Mari-Jo Koval has 2 properties for sale in Marco Island and surrounding areas.

$1,750,000

Listed 2025-07-24

1020 Dill Ct
Marco Island, FL  34145

Beds:
Baths:
Sq Ft:
Lot: 13,068 sf
Land Map
View Full Details

$609,900

Listed 2025-12-15

440 Seaview Ct Apt 1208
Marco Island, FL  34145

Beds: 2.0
Baths: 2.0
Sq Ft: 1,154
Condos Map
View Full Details

Current Property Rentals

Mari-Jo Koval currently has no rental properties available in Marco Island and surrounding areas. Check back later.