Buying and selling homes across Essex, Morris, Union, and Somerset Counties, 30 to 60 minutes from New York City.
25+
Years of combined experience
500+
Five-star reviews
2010
Year established
2013-Present
NJ Realtors Circle of Excellence Award
Top 1%
of agents on Garden State MLS
Top 1.5%
of agents nationwide, RealTrends Verified
We are Allison Ziefert and Sarah "Ginge" Calhoun, co-Principals of the Allison Ziefert Real Estate Group at Compass. We bring more than 25 years of combined experience helping buyers and sellers move to and within the Northern New Jersey suburbs, just 30 to 60 minutes from New York City in Essex, Morris, Union, and Somerset Counties.
Our backgrounds shape how we approach real estate in a meaningful way. Allison comes from construction management and historic preservation, which helps clients see not just what a home is, but what it can be. Ginge's background in managing people in high-end retail brings a strong focus on client experience, communication, and care.
Whether you're buying or selling, our goal is to make the process feel smooth, well-managed, and even a little bit fun, because it should be. Every move has a story and we want to know more about yours.
Current listings from the Allison Ziefert Real Estate Group. Every home has its own page with photos and details, and past sales are on the properties page.
The recognition we value most comes from our clients. Our 500+ five-star reviews mean more to us than any award. They're our greatest source of pride and the motivation behind everything we do.
Read more reviews
Ginge and Allison were essential for our move to Madison, and their network of resources for new homeowners was indispensable. In the time since purchasing our new house, all of their labor contacts have been professional, efficient, and timely, ultimately helping us with turning a house into a home. Throughout the home-searching process, Ginge provided full video walkthroughs of houses while we were overseas, and gave great guidance on the realities of moving to a new state regarding a number of factors we hadn't considered with moving to a house in an area we were unfamiliar with. Thank you so much for making us feel welcomed and well-advised for the entire house-buying process. You're the best!
Madison
We worked with Ginge to purchase our first home in an extremely competitive SOMA market. Ginge helped us navigate both the home-buying process and the Maplewood market, and our experience underscored the importance of working with someone who really understands the area and has strong relationships within the local real estate community, including other realtors, lenders, and inspectors. Ginge and Allison seemingly know everyone! While there were some bumps in the road as we got closer to closing, we were ultimately happy to have worked with Ginge and her team. We're not sure we would have ended up securing a house in Maplewood without their knowledge of the market and guidance throughout the process.
Maplewood
Amazing! My husband and I were looking to move to Essex county from Brooklyn and had no idea where to start. Our agent, Kelly, put us at ease and made the entire process a breeze. She helped us find a perfect rental for our needs and we will definitely be coming back when it's time to buy a home in the area!
My wife Suzy and I were incredibly fortunate to work with Allison Ziefert on both the sale of our home in South Orange and the purchase of our new home in Parsippany. Allison's professionalism, expertise, and dedication were truly unmatched. From start to finish, she was responsive, knowledgeable, and incredibly attentive to every detail. She was always available when we needed her, anticipated challenges before they arose, and made what could have been a stressful process feel remarkably smooth and manageable. What made Allison truly exceptional, though, was the personal care and thoughtfulness she brought to the experience. She went far beyond what we expected from a real estate agent and made us feel as though we were working with a trusted friend who genuinely cared about finding the right outcome for our family. We could not recommend Allison more highly. If you're looking for a real estate professional who combines exceptional expertise with genuine care and commitment, Allison is the person you want in your corner.
South Orange
Allison and the AtoZ team were fantastic to work with. Their deep knowledge of the market was helpful but what really set Allison apart was her commitment to helping find the right house for US. The details mattered! Notably, Allison supported us confidently when we had to walk away from a potential deal and turned a challenging situation into a win. From her real estate acumen to her connection with our kids, we strongly recommend Allison and the AtoZ team for first time buyers, professionals looking for an upgrade, or owners ready to sell. Thank you Allison!
South Orange
As first-time homebuyers, we are so glad we chose to work with Kelly and the whole team at the Allison Ziefert Real Estate Group! Kelly was patient, super responsive, and provided us with many helpful guides and resources. The New Jersey real estate market moves fast, but her deep local expertise and strong network helped us craft a competitive offer that really stood out. Once under contract, she went above and beyond during the inspection period, leveraging her local connections to secure top-tier, experienced inspectors on very short notice so we never missed a deadline. She knows the local market inside and out and knows how to get the deal done. We are so grateful for her guidance!
South Orange
Based in Millburn, with team members calling South Orange, Maplewood, and Morristown home, we serve communities across Essex, Morris, Union, and Somerset Counties. Explore a few of the towns we know and love below, with local guides to homes, commutes, and community highlights.
A storybook downtown known simply as the Village, a 25-acre park with Olmsted design lineage beside it, and Midtown Direct trains from the station between the two.
Explore the Maplewood guide
One of New Jersey's original Transit Villages, with gas-lit streets, two Midtown Direct stations, and a university in town.
Explore the South Orange guide
Edison's laboratory town on the Watchung Ridge, home to Llewellyn Park, Eagle Rock Reservation, and the South Mountain Reservation.
Explore the West Orange guide
Six NJ Transit stations, the Montclair Art Museum, and a string of village centers from Montclair Center to Upper Montclair.
Explore the Montclair guideBerkeley Heights, Bloomfield, Chatham, Cranford, Glen Ridge, Livingston, Madison, Maplewood, Millburn, Montclair, Morristown, New Providence, Orange, Short Hills, South Orange, Springfield, Summit, Union, Verona, West Orange, Westfield, and more.
All communities
Allison and Ginge bring different backgrounds and perspectives to our real estate team, and that combination gives our clients an advantage.
Allison has been a local resident for more than 30 years, giving her an insider's understanding of the towns, neighborhoods, and housing stock we serve. Her professional background in construction management, historic preservation, and planning means she looks at a home differently: understanding not just what it looks like today, but how it was built, how it can be improved, and what may affect its value.
Ginge brings an international perspective to the team. Originally from the UK, she has a particular understanding of the needs of international and relocating buyers and is the founder of Brits of Compass, a nationwide network of British Compass agents. Her extensive agent referral network connects our clients with trusted real estate professionals across the country and around the world.
We're a small, hands-on team, which means you get direct access to your lead agents, with the added support of a full team behind the scenes when needed. Referrals from people we know and other real estate agents and repeat clients are truly the foundation of our business.
We don't simply list homes or open doors for buyers. We anticipate problems, develop a strategy, and stay personally involved from the first conversation through closing. Allison and Ginge are natural problem-solvers who excel at anticipating issues before they arise and finding solutions when they do.
The homes, streets, and downtowns we work in every day, from our Instagram.
Received 2013-Present, at Platinum Level since 2015
Among the top 1.5% of agents nationwide
Among the top 1% of agents on the Garden State MLS
Local market insights and perspective from agents who know these communities inside and out.
Featured video from the Allison Ziefert Real Estate Group of Compass.
Watch more videosHave a question that isn't here? Contact the team.
The Allison Ziefert Real Estate Group is a Compass real estate team based in Millburn, NJ, led by co-Principals Allison Ziefert and Sarah "Ginge" Calhoun. Established in 2010, the team brings more than 25 years of combined experience to buyers and sellers and has earned more than 500 five-star reviews.
The team serves the Northern New Jersey suburbs of Essex, Morris, Union, and Somerset Counties, 30 to 60 minutes from New York City. Its core towns include Maplewood, South Orange, West Orange, Montclair, Millburn and Short Hills, Livingston, Morristown, Summit, and Westfield. Every town has a guide on the communities page.
On the buying side, we help you refine towns and neighborhoods, identify both on- and off-market opportunities, and guide you strategically from search through negotiation and closing, so you always feel informed, confident, and protected. The buyer's guide walks through each step.
On the selling side, we focus on thoughtful preparation, smart pricing, and high-impact marketing to ensure a strong result with as little stress as possible. Allison's background in construction management and historic preservation helps sellers see what a home can be. Start with a free home valuation.
You are already taking the correct first step in reading this! Most of our clients are making that exact same leap. Our advice? Don't just look at houses online; come out for a "vibe check" Saturday. Grab a coffee in Maplewood Village or walk Church Street in Montclair. We love our area and love playing tour guide, so we usually start with a deep-dive call and figure out which town matches your personality before we even start looking at properties.
Yes. Ginge is originally from the UK and has a particular understanding of the needs of international and relocating buyers. She founded Brits of Compass in 2022, a national network of British Compass agents, and her agent referral network connects clients with trusted real estate professionals across the country and around the world.
Call (917) 751-0448, email hello@njfromatoz.com, or visit the main office at 378-380 Millburn Ave., 2nd Floor, Millburn, NJ 07041. The team is available weekdays from 8:00 a.m. to 6:00 p.m., and weekends by appointment.
Whether you're buying or selling, every move has a story, and we want to know more about yours.
Phone
Hours
Weekdays, 8:00 a.m. to 6:00 p.m. Weekends by appointment.
