Mary Byrne

Mary Byrne
Real Estate Agent (Salesperson)
White Plains NY

Salesperson (NY: 40BY1070541)

REALTOR® 5 Active Listings Serves Westchester County, NY
View on Realtor.com

Contact Information

Brokerage
Christie's International Real Estate New York

Office Website
Office Address
1133 Westchester Ave N-228
White Plains, NY  10605
(Westchester County)
Office Phone
914-200-1515
Office Fax
Mobile
914-837-0531
Email
joannbyrnerealestate@gmail.com

Service Areas

Manhattan: NY New York: NY White Plains: NY Fairview: NY North Castle: NY Greenburgh: NY Harrison: NY Irvington On Hudson: NY Irvington: NY Bronx: NY Yonkers: NY Hastings-on-Hudson: NY Eastchester: NY Tuckahoe: NY Mount Vernon: NY Bronxville: NY New Rochelle: NY Wykagyl: NY

About Mary Byrne

Mary Jo Ann Byrne is a Licensed Real Estate Salesperson and Certified Luxury Specialist affiliated with Christie's International Real Estate Westchester Hudson Valley, operating from the Scarsdale Sales Gallery. With over two decades of experience in the real estate sector, she is a valued member of the Westchester Homes Team, focusing on residential real estate transactions for both buyers and sellers primarily in Westchester County.

Jo Ann excels in guiding her clients through the complexities of real estate decisions, equipping them with insights into the distinctive attributes that make Westchester an appealing location for living and working. Her commitment to providing knowledgeable and enthusiastic support ensures that she meets her clients' needs with a blend of professionalism and personalized service, characterized by a friendly, attentive, and honest approach. Her meticulous, full-service methodology is highly regarded by both sellers and buyers.

Her journey into real estate began 20 years ago when she entered the field as an investor, successfully rehabilitating numerous properties. Currently, she owns several rental units, bringing extensive landlord experience to her practice. Jo Ann's hands-on expertise in home renovation, staging, and interior design offers her clients a significant advantage. Her comprehensive understanding of construction and design, developed through collaboration with builders, contractors, and local architects on various renovation and new construction projects, provides invaluable insights for home buyers and helps sellers effectively position their properties for timely and profitable sales.

Prior to her real estate career, Jo Ann earned an MBA in Finance and Investing. She is multilingual, fluent in Italian, Russian, French, and Spanish, further enhancing her ability to connect with a diverse clientele.

Westchester County, NY Real Estate Market Analysis (Single Family Homes)

$1,799,387
Avg. Listing Price
From Mary's portfolio
3.9 / 3.4
Avg. Beds/Baths
Typical property size
3,226 sf
Avg. Square Footage
Interior living space
909
Active Listings
Current inventory

If you need to reach actively licensed real estate agents in Westchester County, New York, this list was built for you. Mortgage lenders, title companies, and insurance providers use it to put their services directly in front of agents who are closing deals right now. PropTech companies use it to demo tools, recruiters use it to fill open roles at brokerages, and continuing education providers use it to promote required CE courses before license renewal deadlines hit.

The Westchester County real estate agent email list gives you direct access to {{AGENT_COUNT}} verified, actively licensed agents, including {{CELL_COUNT}} with confirmed cell phone numbers. Whether you are running a cold email sequence, a direct mail drop, or a phone outreach campaign, this data gives you the coverage to reach the right professionals without wasting budget on stale or unverified contacts.

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Every record in this list is sourced directly from the New York State real estate licensing board, which means you are not getting scraped web data or recycled contacts from an aggregator. New emails are added weekly, the full list is cleaned monthly, and the entire database is rebuilt from scratch twice a year. That discipline is why we back every list with a 96% deliverability guarantee — a number most cheap data vendors cannot come close to matching because they are not doing the maintenance work behind the scenes.

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How to Use This Westchester County Agent List

Cold email is the most common use case, and this list is formatted and deliverability-tested to work cleanly inside cold-email platforms, including Zap Contact at zapcontact.com, which is built specifically for high-volume agent outreach. Load the file, set your sequence, and you are sending the same day. The cell phone data also makes this list a strong fit for SMS campaigns, ringless voicemail drops, and direct dial outreach without a gatekeeper in the way.

For more advanced targeting, you can segment the list by broker versus sales agent, which is useful if your product is relevant only to decision-makers at the brokerage level. You can also match the email addresses against LinkedIn for connection campaigns. No other vendor offers filtering down to individual zip codes within Westchester County — that granularity lets you focus spend on specific territories instead of blasting the entire county.

Why Westchester County, New York Agent Data Matters

Westchester County is one of the most active real estate markets in the New York metro area, with major agent populations concentrated in cities like White Plains, Yonkers, New Rochelle, Mount Vernon, and Tarrytown. When you buy Westchester County real estate agent email list data at the zip code level, you can align your outreach with how agents actually work — by neighborhood and community, not just by county line.

With {{AGENT_COUNT}} actively licensed agents in the county, the opportunity for targeted outreach is significant. A statewide New York list will bury your ideal prospects inside hundreds of thousands of records. A Westchester-specific list focused on the agents who operate in the markets your business serves is the smarter, more cost-effective way to generate pipeline from agent relationships.

Current Property Listings

As of 6/27/2026, Mary Byrne has 5 properties for sale in White Plains and surrounding areas.

$399,000

Listed 2025-05-01

215 Washington St Apt 19
Tappan, NY  10983

Beds: 2.0
Baths: 1.5
Sq Ft: 1,150
Lot: 436 sf
Condo Map
View Full Details

$569,000

Listed 2026-05-15

36 Tulip Ct
Nanuet, NY  10954

Beds: 2.0
Baths: 2.5
Sq Ft: 1,648
Lot: 4,792 sf
Condo Map
View Full Details

$1,399,000

Listed 2025-07-10

98 University Ave
Yonkers, NY  10704

Beds: 6.0
Baths: 6.0
Sq Ft: 0
Lot: 5,868 sf
Multi Family Map
View Full Details

$1,399,000

Listed 2025-07-10

90 University Ave
Yonkers, NY  10704

Beds: 6.0
Baths: 6.0
Sq Ft: 0
Lot: 6,499 sf
Multi Family Map
View Full Details

$299,000

Listed 2026-04-07

66 Liberty St
White Plains, NY  10606

Beds:
Baths:
Sq Ft: 0
Lot: 10,890 sf
Land Map
View Full Details

Current Property Rentals

Mary Byrne currently has no rental properties available in White Plains and surrounding areas. Check back later.