Edward A. Mermelstein

real estate consultant | Legal Adviser | Media Pundit

“The best way to predict the future is to create it.”

– Peter drucker

About Edward

Edward A. Mermelstein is a Ukrainian born, international real estate attorney, legal strategist, businessman, and developer based in New York City.

He specializes in international corporate and real estate law, private equity investment and joint ventures, real estate investment, management and development, as well as claims and dispute resolution. Edward is also fluent in both English and Russian.

Edward’s impressive track record, keen understanding of the global political arena, and knack for nimbly navigating international markets have led him to be named one of New York City’s 10 most influential figures in real estate. He is often quoted in publications like The New York Times, The Wall Street Journal and The Real Deal, and has been featured on numerous news networks, including CNBC, Reuters, BBC, Fox News and Bloomberg.

Edward is the founder and CEO of One & Only Holdings, a company that caters to the needs of high-net-worth individuals. One & Only Holdings provides real estate brokerage, consulting, and family office planning support. They guarantee thorough guidance, personalized attention, confidentiality, and impeccable service.

Edward is also the founder and CEO of One & Only Realty, a real estate brokerage firm headquartered in New York City. He is regularly involved in a variety of charitable organizations supporting local and national causes rooted in culture, politics, education, and the arts.

Real Estate Transactions

Real Estate Sold

TV Appearances

Recent News

For Foreign Buyers, Family Homes Over Trophy Towers

For Foreign Buyers, Family Homes Over Trophy Towers

THE NEW YORK TIMES The number of Russian buyers has dropped in the past year or two, but those who already own here are still buying, said Edward Mermelstein, the managing partner of the law firm Rheem Bell & Mermelstein, who has many Russian clients. “Those who...

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Green Cards Given to Foreign Investors Under Scrutiny

Green Cards Given to Foreign Investors Under Scrutiny

REALTY TODAY EB-5  was established in 1990 wherein an investor must fund an amount of $1million to a project that can create 10 jobs. This is seen as an easier way to get citizenship. The investor can also apply for conditional visas for his family members. "It's an...

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Japanese Firms Renew Interest in NYC Property

Japanese Firms Renew Interest in NYC Property

THE WALL STREET JOURNAL Japanese real-estate firms also have been more willing to work this time with local partners. During the 1980s, most Japanese firms didn’t do this, “and that’s a reason why they departed the market so quickly when it fell apart,” said Edward...

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Areas of Expertise

Foreign Investment Attorney

Expert help navigating the complex foreign investment process in the United States and ensuring your interests are always protected. 

Luxury Real Estate Consultant

Get peace of mind when purchasing your dream home or investment property.

Legal Strategist

Edward’s understanding of the US and international markets allows him to develop successful investment plans. 

Need A Consultant?

Edward has been a Foreign Investment Advisor for more than 20 years, and assists wealthy foreigners with investments and acquisitions in the United States.


One & Only Realty is a full-service boutique brokerage firm that represents  sellers, buyers, renters, landlords, and developers of luxury properties in the New York area. If you are looking for professional representation for a real estate transaction from someone who knows and understands New York City real estate industry, then you have come to the right place.

One & Only Realty stands out from the rest with our exceptional understanding of the New York real estate market and diverse portfolio of services we consistently provide to clients. We serve each client on an individual and exclusive basis, and make sure to go above and beyond to meet even the most demanding requests. 

For more than 25 years, One & Only Realty has worked with clients from all over the world, exceeding expectations and building dreams in the process of purchasing properties in New York. With an extensive background in development, architecture, finance, and real estate, our agents’ main goal is to make the buying process seamless and always find that perfect home for the lowest achievable price. We deliver impressive results in a timely, yet diligent manner.

One & Only Holdings is a multi-family office dedicated to making your dreams a reality. We have been helping a select group of clients and their families with unparalleled service since 2009.  Through our international strategic alliances, we have helped more than 100 high-net-worth families prosper by building, managing and preserving their wealth.

We are an international business, with offices and expertise around the world. Help is never more than a phone call or a flight away, no matter where your home office is located. We bring expert advice with an international perspective and have a global network of contacts and investment opportunities worldwide.

One & Only Holdings has expanded across borders to better serve our international clients and our expertise has grown accordingly. Whether you require complex answers, investment advice, or have a tax/legal questions, we can assist you with our knowledge of international issues at any hour of the day.

Philanthropic Work & Organizations

ZAKA International


The ZAKA International Rescue Unit operates a specially trained team of volunteer paramedics and search and rescue professionals who are on call 24/7. Their ability to quickly respond  to major international disasters, led the United Nations to recognize ZAKA as an international volunteer humanitarian organization in 2005. The ZAKA International Rescue Unit is held in high esteem by emergency forces around the world and is often called upon by international forces to provide assistance, consultation and offer advice.


Mermelstein Scholars at New York University


A scholarship fund established for students with financial need attending New York University  — they are known as Mermelstein Scholars.

COJECO — Council of Jewish Émigré Community Organizations


COJECO was formed in 2001 as an umbrella organization for grassroots community organizations representing Russian-speaking Jewish immigrants in New York. Its mission is to help unite and organize all well-educated and successful Russian-speaking Jewish immigrants. COJECO’s wide array of services is helping it gain prominence within the  growing Russian Jewish community of New York City. It now serves as a model for similar organizations around the country.


UJA-Federation has been a central force in communal planning and philanthropy in the New York Jewish community for over 90 years. UJA seeks to inspire a passion for Jewish life and learning, and strengthen Jewish communities around the world. Working with more than 100 beneficiary agencies, synagogues, and other Jewish organizations, its reach spans more than 60 countries around the world, impacting 4.5 million people each year.

Manhattan Youth Ballet 

Board of Directors

The Manhattan Youth Ballet is a school of dance that forms a nurturing environment where students can study classical ballet with a renowned faculty at affordable prices. With a wide array of programming, it fosters creative expression and self-confidence for youth of all backgrounds.

The Link of Times Cultural-Historical Fund

USA Regional Director (2004-2009)

A Cultural-Historical foundation, The Link of Times was established by Russian businessman Viktor Vekselberg in February 2004. The foundation’s core mission is to repatriate cultural and historical pieces that have been taken out of Russia. Encouraging the United States and Russia  —  two seemingly polarized nations  — to cooperate is incredibly important, especially in times of economic hardship. By assisting Russia in reclaiming emblems of its cultural heritage, this organization helps bridge the long existing gap between the former USSR and the United States.

Client Testimonials

Arie Ben-Dor

“When Nouriel Roubini paraded around parliaments around the world post Lehman Brothers, Ed Mermelstein was reassuring and advising his clients. His commitment to understanding a person’s character, style, needs and wants make him a valuable partner in today’s unstable economy. When reviewing your parliamentary strategies consider Ed before making any critical decisions. He’s worth his value and more…”

A. G.

“Edward has tremendous litigation skills.  He has the ability to dissect a case much like a skilled surgeon, with absolute calm.  Nothing seems to rattle or distract him from his goal in a case, which makes him impossible to beat.”

Eric Braverman, MD, PATH Medical

“Ed Mermelstein is a trusted attorney that would be a great advisor for your entire life.”

Jon Katz, President at Katz Moving

“Edward has high ethical standards and exhibits professionalism in all aspects of real estate law and business, and I’m honored to have worked with him.”

Matt Eventoff, Partner, Princeton Public Speaking

“Do not let Ed’s humble demeanor fool you; in real estate, as in most fields, there are a select few who are truly experts, and thousands of imitators. Ed is the real thing. Whether it’s discussing the future of residential housing in New York City, general land based trends in Boise or the commercial market in Kiev, Ed is the first stop for myriad journalists, and for good reason.”

Thomas Wiggin, President of Mortgage Financing, Thomas Funding Group

“Edward is a highly competent attorney. He provides his clients with a multitude of personal service to his clients and is wonderful to work with as a colleague. I would recommend him to any of my clients.”

Alexander Kanen, Owner, Alexander Kanen, P.C.

“Ed is a trusted advisor worthy of the highest recommendation involving legal matters. His experience, integrity, keen insights, natural business instinct and general professionalism as both a lawyer and business professional are second to none when legal representation is needed. Ed and his entire staff at the firm are always a true pleasure to work with. I will continue to regularly work with this firm and would recommend them with the highest level of enthusiasm.”

Dave Kay, VP at Infra Mega – Energy and Infrastructure Funding

“Expert and well connected. Relentless with guaranteed good results”

Lada Mirzalieva, Consultant, ABA/CEELI

“Working under Edward’s supervision. He is a very smart, intelligent and bright attorney. Edward is a very talented person and has a great personality. Very supportive. I enjoyed working for his office.”

Simon Amburg, Owner, Paramount

“I have known Mr. Mermelstein for many years. He has proven to be very diligent and professional, is very knowledgeable in his field, and has a high level of integrity. It has always been a pleasure conducting business with Mr. Mermelstein. I would recommend him very highly.”

Yana Kondak

“If you need results, then Edward is the only person to work with. He is thorough, detail oriented and successful in delivering positive outcomes for his clients.”

Marlen Kruzhkov, Principal, Law Offices of Marlen Kruzhkov, P.L.L.C.

“Ed is not only a brilliant attorney but a person of great integrity.”

Dacia Betts, CEO/President, Development Concepts, Inc

“Edward Mermelstein is a remarkable attorney and has worked wonders assisting me in business ventures. He has provided my firm with excellent legal advice and has helped increase my flow of business.”

Liu-Yue Lam

“I had the honor of working with Ed on several deals over the past few years. Ed and his firm are simply a pleasure to work with. He is a team player, highly skilled negotiator, and an expert in commercial real estate. In the rough and tumble world of high finance Ed really stands out as an extremely accomplished gentleman.”

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