• Sean Monaghan has more than thirty years of experience in real estate, environmental and business law. He started his practice as a real estate lawyer and after working on significant real estate transactions of all sorts, developed a specialty in environmentally impacted real estate and business transactions. His practice also includes counseling clients with regard to regulatory compliance before state and federal agencies, including the New Jersey Department of Community Affairs, the United States Environmental Protection Agency and the New Jersey Department of Environmental Protection.

    • Recognized in Chambers USA since 2010 as a leading New Jersey Lawyer in Environmental Law*
    • Repeatedly selected to the New Jersey Super Lawyers® list, featured in New Jersey Monthly magazine, in the field of Environmental Law*
    • Included on the list of Morris/Essex Health & Life magazine's 2018, 2019, 2020, 2021 and 2022 "Top Lawyers" in Land Use and Environment*     

    *No aspect of this advertisement has been approved by the Supreme Court of New Jersey. Click here to read Awards & Honors Methodology.
    Sean Monaghan
    Rated by Super Lawyers

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    • Author, "Permit Extension and Regulatory Deadline Extension," September 24, 2020
    • Panelist, Brownfields Law at Morris County Economic Development Corporation Municipal Council Meeting, April 10, 2018
    • Contributing author, March 2018 Legal Updates for Businesses
    • Contributing author, December 2017 Legal Updates for Businesses
    • Contributing author, June 2017 Legal Updates for Businesses
    • Author, "The Death of the No Further Action Letter" New Jersey Lawyer, No. 305, April 2017
    • Author, "Lead in Drinking Water -- Are We Looking in the Right Places?" New Jersey Lawyer, No. 302, October 2016, NJSBA
    • Author, "A Potential ISRA Pitfall for the Unwary Buyers of a Business", NJSBA Business Law Section Newsletter, Vol. 38, No. 2, October 2014
    • Lecturer and Panelist, Sophisticated Techniques for Solving Challenging Environmental Issues in Commercial Real Estate Transactions, NJICLE, September 30, 2014
    • Lecturer and Panelist, Addressing Transactional Issues for the Environmental Lawyer, NJSBA Environmental Law Section Forum, June 21, 2014
    • Author, Chapter 56 “New Jersey” in Brownfields: A Comprehensive Guide to Redeveloping Contaminated Property, Davis & Sherman, editors, 3rd Edition 2010, American Bar Association
    • Author, “A Borrower’s Guide to Lowering Corporate Environmental Liability,” The Journal of Corporate Accounting Finance, Volume 4, No. 3, Spring, 1993, Executive Enterprises Publications Code, Inc.
    • Author, CERCLA,  RCRA., EPA and Lender Liability, New Jersey Lawyer, Volume I, No. 41, November 2, 1992, The New Jersey Lawyer, Inc.
    • Former Board member, chairman Policy Committee, pro bono attorney for environmental, land use and condominium law, Morris Habit for Humanity, Inc.
    • Represented public and privately-owned real estate development companies in brownfield redevelopments in Kearny, New Jersey and Elizabeth, New Jersey.
    • Represented an entrepreneur real estate developer in the redevelopment of a former manufacturing facility into a big box retail store in Orangeburg, New York.
    • Represented residential real estate operator and a private equity firm in restructuring their condominium projects, including preparation of public offering statements and applications for registration as well as compliance with New Home Warranty and Builder Registration Act and regulations.
    • Represented one of the nation’s largest telecommunications companies in support of retail and wireless businesses including more than 250 leases for retail stores, wireless antenna facilities and offices; resolving disputes with landlords; due diligence, negotiation and implementation of real estate aspects of mergers and acquisitions; counseling on OSHA; marketing; eminent domain issues; and appealing land use approval decisions.
    • Represented defense contractor in sale of surplus facilities including real estate and environmental issues.
    • Represented regional manufacturing company in sale/leaseback of factory, acquisition of new headquarters and factory and disposition of former facility.
    • Represented Morris Habitat for Humanity, Inc. in development of multi-family affordable housing projects in northern New Jersey, including acquisition of sites, use variance and site plan approvals, formation of condominiums and compliance with the Planned Real Estate Development Full Disclosure Act.
    • Represented international food products company in acquisition of site and zoning approvals for 150,000 square foot manufacturing, warehouse and office facility.