Mark Stempel

Blue Island Homes

27 Years of Experience

(13)

$25M

Total Sales Last Year

Years of Experience

Recent TransactionsTransactions from the last 3 years

$877.4K

Average Price Point

Service Areas

Babylon, NY Bellmore, NY Levittown, NY Massapequa, NY Merrick, NY Rockville Centre, NY Seaford, NY Wantagh, NY

View All Service Areas

Specialties

Sellers
Residential Property

Awards

2026
TOP AGENT
Wantagh, NY
2026
TOP AGENT
Bellmore, NY
2026
TOP AGENT
Merrick, NY

View All Awards

Loading recent sales...

Mark Stempel's Reviews & Ratings

13 Reviews

(5/5)

Note: Reviews may include other agents on their team

What clients say about this agent....

Professional
Communicative
Outstanding
Knowledgeable
Responsive
Trustworthy
Hard working
Attentive

Bala S.

Review for Member: Mark Stempel

April 18, 2026

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Joanna did an amazing job with getting us what we wanted! She was incredibly straightforward and honest, especially when it came to pricing and property sizes, which we really appreciated. She quickly understood our preferences and tailored her suggestions accordingly. Her responsiveness was outstandingaEUR"always available to text at any time. Her enthusiasm in showing a wide range of homes helped us truly understand the market, and her ability to communicate efficiently with other agents kept everything moving smoothly.

Thanusha

Review for Member: Mark Stempel

April 17, 2026

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

We had a great experience working with our real estate agent, Joanna Tsue. From start to finish, she was professional, knowledgeable, and responsive. Joanna took the time to understand exactly what we were looking for and guided us through every step of the process. What stood out most was her communicationaEUR"she kept us informed, answered all our questions quickly, and made what could have been a stressful experience feel smooth and manageable. Her expertise in the market was clear, and we always felt confident in the decisions we were making with her support. I would highly recommend Joanna Tsue to anyone looking to buy or sell a home. Her dedication and attention to detail truly set her apart. She is professional, reliable, and committed to making the entire process as smooth and stress-free as possible.

Stellgat

Review for Member: Mark Stempel

March 25, 2026

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Working with Trudy was truly the best experience from start to finish. From our very first conversation, it was clear that she was incredibly knowledgeable about the market and genuinely invested in helping us find the perfect home. Her attention to detail, responsiveness, and professionalism set her apart immediately. She took her time to understand exactly what we were looking for and guided us through every step of the process with patience and expertise. She was always quick to answer and eager to help. I give her a 10/10 throughout. Shes the best!

MatthewAprile

Review for Member: Mark Stempel

March 25, 2026

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Working with Trudy was honestly a great experience from start to finish. She was excellent throughout the entire process always responsive, knowledgeable, and easy to talk to. She really took the time to understand what we were looking for and made everything feel smooth and stress free. Whether it was answering questions, setting up showings, or guiding us through decisions, she was always on top of it. Id definitely recommend Trudy to anyone looking for a reliable and professional realtor.

Zuser20180215182508269

Review for Member: Mark Stempel

December 4, 2025

Local Knowledge

Process Expertise

Responsiveness

Negotiation skills

ZillowVERIFIED

Absolutely the best, she is very professional and she will make sure that you get the house you want. We are 100% with the house she found for house, where we wanted and how we wanted. Thank you Erika for helping us finding our home.she is 100% recommended. She does an excellent job.