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  • LL.M. in Taxation, Boston University School of Law, 1992
  • J.D., Cornell University Law School, 1985
  • Th.M., Harvard University, cum laude, 1982
  • M.Div., Harvard University, 1977
  • B.A., Wesleyan University, cum laude, 1973

Bar Admissions

  • Massachusetts

Court Admissions

  • U.S. District Court, District of Massachusetts

Memberships & Affiliations

Board of Directors, Hereditary Disease Foundation, 2007-present

Member, New England-Canada Business Council

Board of Trustees and former President, Massachusetts Congregational Fund, a professionally managed $30,000,000 fund of church endowments, 1993-present

Board of Directors, American Congregational Association, 2005-present

Member, American, Massachusetts and Boston Bar Associations

Co-Chair, Corporate Law Committee, Boston Bar Association, 1999-2003

Law360’s Securities Editorial Advisory Board, 2013


Listed, Chambers & Partners USA Guide, an annual listing of the leading business lawyers and law firms in the world, 2008 and 2009 editions

Ranked AV® Preeminent™ 5.0 out of 5*

*AV® Preeminent ™ and BV® Distinguished™ are certification marks of Reed Elsevier Properties Inc., used in accordance with the Martindale-Hubbell certification procedures, standards and policies

Jonathan Guest

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  • T: 617.449.6598
    F: 617.607.9348

Jonathan Guest concentrates his practice in corporate and securities law including debt and equity finance (public and private offerings including shelf regulations, registered direct offerings, PIPEs and rights offerings), corporate governance (Sarbanes-Oxley compliance), and domestic and cross-border mergers and acquisitions. He has also advised early-stage companies concerning matters of entity selection, capital structure, "angel" and venture capital finance, secured loans, executive compensation, intellectual property protection, and technology licensing. Jonathan's clients include publicly-traded U.S., Canadian, U.K. and Australian companies involved in pharmaceuticals and drug development, oil and gas as well as natural resource exploration and production, and commercial real estate. He has also advised companies engaged in telecommunications, e-commerce, and software. Jonathan has extensive experience with federal and state securities law matters encountered by foreign companies seeking to raise capital and have their securities traded in the United States. Prior to joining McCarter & English, Jonathan was a partner at one of the largest international law firms.

Mr. Guest has been selected as one of Massachusetts Super Lawyers for 2004-2011.

Representative Matters

$120 million registered cross-border universal shelf offering by Canadian natural resource company operating in China (NYSE and TSX).
$500 million Rule 144A offering by U.K.-based investment fund focused on ownership and development of Ukraine commercial and residential properties with shares to be listed on NYSE Euronext (adverse market conditions prevented completion).
€300 million global IPO and Rule 144A offering by U.K.-based owner of German commercial properties and listing on the AIM of the London Stock Exchange.
€400 million global IPO and Rule 144A offering by U.K.-based owner of German retail properties and listing on the AIM of the London Stock Exchange, and €270 million global and Rule 144A follow-on offering.