
Buying & Owning / 5 MIN READ
Beyond the asking price
Common charges, maintenance, taxes and the work ahead: the questions that make an apartment’s monthly cost easier to understand.
Read the story →
In Good Company™
About MM&Co.
At MM&Co., we believe that success is best shared, and that's the heart of In Good Company™. It's more than a tagline; it's a reflection of who we are and what we do.
Whether we're showcasing beautiful homes, highlighting vibrant neighborhoods, or celebrating the amazing people we work with, everything we do is grounded in the belief that life and real estate are better when you're surrounded by good company.
MM&Co. at Compass, New York City
What We Do
From first-time buyers to seasoned investors, our approach is consistent: attentive, strategic, and grounded in what's actually happening in the market.
Navigating New York's market requires more than access; it requires experience. We guide buyers through every step, from search to close.
Learn More →We position properties with precision: the right pricing, the right timing, and a presentation that commands the market's attention.
Learn More →With 9 new developments in our portfolio, we bring meaningful expertise to advisory and representation in ground-up projects across the city.
Learn More →Our professional network can introduce opportunities beyond the public listings. We help you consider them alongside the wider market.
Learn More →Whether timing a purchase or planning a portfolio move, we provide clear market analysis and a considered strategic perspective.
Learn More →New York City
Every transaction is a relationship.
Every relationship is a responsibility.
Meet the Lead
Licensed Associate Real Estate Broker
Maggie Marshall brings a relationship-first approach to New York City real estate, pairing strong market knowledge with a calm, strategic process.
Her work is grounded in trust, discretion, and an ability to guide clients clearly through complex decisions, whether purchasing their first New York apartment or building a substantial portfolio.
With over two decades of experience and more than $1 billion in advised residential sales, Maggie leads MM&Co. with the kind of quiet confidence the city's most discerning clients rely on.
The Team

Licensed Real Estate Salesperson
Director of Operations
Licensed Real Estate Salesperson
Active Listings
Browse our active listings directly on Compass — updated in real time.
View Our Listings on CompassCoverage
Stay Current
From the MM&Co. Journal
A closer look at the city we call home. Thoughtful stories on architecture, design, and the numbers behind the market.
Created by Cyrus Blake · @soldbycys ↗

Buying & Owning / 5 MIN READ
Common charges, maintenance, taxes and the work ahead: the questions that make an apartment’s monthly cost easier to understand.
Read the story →
Architecture & Neighborhoods / 5 MIN READ
A closer look at the salvaged structures and everyday pleasures of Williamsburg’s Domino Park.
Read the story →
Market report / 4 MIN READ
More homes came to market in September. October’s weekly figures, mortgage rates and new rental reports bring the choices into focus.
Read the story →Get In Touch
In good company starts with a conversation. Whether you're buying, selling, or simply exploring your options, reach out and let's connect.