Home > People > Mariquita Barbieri, LLM

Mariquita Barbieri, LLM


St. Louis
314 552 6040 314 552 6040 direct

Mariquita is an experienced and results-driven M&A and tax attorney who negotiates and closes complex transactions. A former corporate counsel herself, she frequently serves as outside general counsel to clients, providing practical guidance on a full range of legal, business and compliance matters.

Mariquita represents clients in mergers and acquisitions of all types, including complex commercial transactions involving stock, membership interests, asset purchases and sales and real estate. She has also negotiated and closed numerous tax-free reorganizations of multi-million-dollar corporations. A seasoned deal lawyer, Mariquita works closely with clients to ensure their goals are completely understood and accomplished, right-sizing legal work to the client issue and deal size.

She holds a Master of Laws in Taxation and offers essential advice on the tax implications of corporate transactions. Mariquita provides comprehensive advice and structuring for private equity and hedge funds, and those involving joint ventures. She also develops sound and novel solutions for clients on tax issues, both national and international.

Drawing on her in-house experience with a Fortune 500 bioproducts company, Mariquita provides regulatory counsel to clients on their FDA, USDA and EPA compliance obligations. She has designed and improved best-practice templates for confidentiality agreements, employment agreements, vendor contracts and commercial transactions. Mariquita has also conducted internal ethics investigations and led crisis management approaches that have minimized risks and penalties.

Mariquita is a Certified Information Privacy Professional (CIPP) and manages clients' global privacy and data security program implementation, including GDPR compliance.

During her time as corporate counsel and assistant secretary with DuPont Nutrition & Health, Mariquita served as general counsel to three major business divisions. She managed corporate and litigation matters, trade compliance, employment law questions, and an M&A portfolio with acquisitions, divestitures, joint ventures and stock purchases in excess of $6 billion. Mariquita collaborated with business leads to protect IP assets, secure trade secret protections, and negotiate licensing and sales opportunities throughout North America, Europe, Asia Pacific, South and Latin America.

Mariquita is passionate about applying her in-house experience to each client relationship and getting "in the trenches" with general counsel and executives on their thorniest legal questions and most complex transactions.

Representative M&A and Tax Transactions:

Private equity and venture capital investments for family offices and investors in broad range of industries (2022)

Sale of Midwest supplier of specialized cutting tools, coolants and gauging products (2021)

Stock purchase and sale of regional architectural firm (2019)

Reorganization under IRC Section 355 to 368 for multi-disciplinary wealth management and benefits firm (2017)

Reorganization under IRC Sections 355 and 368 for multi-national investment portfolio firm (2015)

Reorganization under IRC Sections 355 and 368 for regional pool construction and sales business (2014)

Hart-Scott-Rodino filing for $150-$200 million acquisition of majority interest in retail clothing brand (2012)

Asset purchase and sale of intellectual property and other assets relating to non-shingle building integrated photovoltaic product (2012)

Asset purchase and sale of global inoculant and biological seed treatment business (2011)

$6.3 billion acquisition of international confection and ingredients producer (2011)

Experienced and Innovative Leadership on Compliance and Ethics Issues:

Successfully developed and implemented risk management controls and policies, including compliance training and risk assessments for antitrust, export controls, anti-boycott, FCPA, product stewardship and code of conduct.

Successfully developed and implemented contract database for management of company's obligations.

Managed and implemented policies to comply with FDA, EPA and USDA regulatory landscape.

Conducted internal ethics investigations and led crisis management teams that minimized risks and penalties.

Guided and implemented restructuring of North American distribution network which served as model for EU restructuring.

Designed and improved best-practice templates for confidentiality agreements and commercial transactions.

Conducted FCPA investigation; drafted recommendations in response to SEC investigation.

Determined reporting requirements for customs and designations for rules of origin for use by regulatory team.

Identified and verified sources of ingredient supply and implemented improvements to manufacturing chain.

Successfully resolved rules of origin and customs inquiries with non-U.S. customers.