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  4. Sinai & Brooke Halberstam

Sinai & Brooke Halberstam

Keller Williams Valley Realty

Looking to sell your property, buy a new home, or just need some expert real estate advice?

About
We have been providing personal service for years for all our satisfied customers
Years of experience
Great negotiator
Highlights *
8
Recent sales
$770K - $1.5M
Price range
$1.08M
Median price
12
Years experience

Recent Listings & Sales

Address Sold Date Sold Price Represented
112 Grandview Ave
Spring Valley, NY 10977
6/16/2026 $770,000 Seller
4 Park Ave
Airmont, NY 10952
9/4/2025 $999,000 Seller
23 Olympia Ln
Monsey, NY 10952
2/18/2025 $1,500,000 Buyer
7 De Ronde Rd
Monsey, NY 10952
11/27/2024 $999,000 Seller
4 Northgate Dr
Spring Valley, NY 10977
4/17/2024 $925,000 Seller

Ratings & Reviews
5.0 (5)

leeza223
Dec 24, 2019

Sinai was very responsive and helpful throughout the process of selling my home and purchasing a new one. I was very pleased to have his assistance especially when we hit bumps in the road!

Zillow Verified

arygolds1
Oct 31, 2019

Sinai was a pleasure to work with! He was very knowledgable with all questions I had, and very patient with answering them. He was able to negotiate on my behalf with great expertise, and saved me a lot of money. He was available whenever I called, and went above and beyond whenever I needed anything. Would highly recommend!

Zillow Verified

yoelf24
Apr 8, 2019

Sinai, We can't thank you enough for all the hard work, dedication and the time you spent in helping us purchasing our new home. You made it very easy for us, you helped us with every step of the transaction, and we very much appreciate it. We will definitely suggest you to anyone we know who is selling or wanting to purchase a home, you are an expert in your field and we were lucky to have you as a Realtor."

Sincerely,
Joel Friedman

Zillow Verified

zuser20140624063410393
Aug 13, 2018

We appreciated his honesty and knowledge of each home we looked at. He understood and honored our needs. It was a pleasure working with him and he did indeed find us our dream home!

Zillow Verified

shimon87
Sep 20, 2016

Sinai is a masterful negotiator. Thanks to him I saved tens of thousands of dollars on the house that I bought and was able to sell my previous house for a nice sum. He is the nicest guy, he spent hours upon hours showing me around and was always available to answer my questions.

Zillow Verified

Professional Info

Brokerage

Keller Williams Valley Realty
123 Tice Boulevard, Woodcliff Lake, NJ
Woodcliff Lake, NJ 07677

Licensed

Licensed REALTOR®
NY 10401272549
NJ 2190852

Specialties

  • First-time buyers
  • Investment & property management
  • Luxury properties

Top Cities *

Monsey

  • 4 sales past 3 years
  • 175 days on market
  • $1.16M median price

Spring Valley

  • 2 sales past 3 years
  • 114 days on market
  • $770K median price

Suffern

  • 1 sales past 3 years
  • $1.3M median price

*Sales data is calculated based on transaction information available to Agent Pronto at the time of publishing and may not accurately reflect all transactions for a given agent.