Key Takeaways
- • FisherBroyles, a distributed law firm, adds two veteran partners—Tanya O'Neill (Milwaukee) and Randall Carrigan (Boston)—to expand environmental and securities practice capabilities as of June 11, 2026.
- • O'Neill brings 25+ years of specialized environmental law experience, including environmental bankruptcy trusts, M&A due diligence, remediation, and compliance work across 25+ states; previously practiced at Foley & Lardner LLP.
- • Carrigan contributes 35+ years of securities and private equity expertise, advising major asset management and PE firms on domestic and international transactions across emerging markets, Latin America, and Asia.
- • The hires strengthen FisherBroyles' capacity in environmental health & safety compliance, securities regulatory matters, private equity structuring, and ESG advisory services for institutional clients and asset managers.
Summary
FisherBroyles, a distributed law firm ranked among the world's largest, announced the addition of two accomplished partners on June 11, 2026, to bolster its environmental and securities practices across two key markets. Tanya O'Neill joined the Milwaukee office while Randall Carrigan joined the Boston office, bringing combined experience exceeding six decades in specialized practice areas that align with institutional investor demand for ESG and M&A advisory services.
O'Neill's 25-year track record focuses exclusively on environmental law, with particular depth in environmental bankruptcy trusts and complex remediation matters. Her background includes advising environmental trustees and stakeholders through preconfirmation negotiations, due diligence, and dispute resolution across environmental bankruptcy structures. Her M&A expertise spans environmental due diligence, insurance recovery, permitting, and compliance projects involving contaminated or regulated properties in more than 25 states. Prior to joining FisherBroyles, she was at Foley & Lardner LLP and holds a Juris Doctor with high honors from Drake University Law School.
Carrigan's 35-year career centers on securities law and investment management, positioning him to advise on institutional capital flows. His experience includes representing some of the largest U.S. asset management and private equity firms on securities regulation, fund structuring, M&A, and corporate governance matters. His practice extends to international transactions across emerging markets, Latin America, and Asia, addressing the cross-border complexity institutional investors increasingly navigate.
The additions reflect FisherBroyles' strategy to deepen capabilities in regulatory compliance, environmental remediation funding, and securities-regulated investment vehicles—areas where institutional investors, asset managers, and private equity firms require sophisticated counsel on transaction structuring, due diligence, and risk mitigation.
O'Neill's 25-year track record focuses exclusively on environmental law, with particular depth in environmental bankruptcy trusts and complex remediation matters. Her background includes advising environmental trustees and stakeholders through preconfirmation negotiations, due diligence, and dispute resolution across environmental bankruptcy structures. Her M&A expertise spans environmental due diligence, insurance recovery, permitting, and compliance projects involving contaminated or regulated properties in more than 25 states. Prior to joining FisherBroyles, she was at Foley & Lardner LLP and holds a Juris Doctor with high honors from Drake University Law School.
Carrigan's 35-year career centers on securities law and investment management, positioning him to advise on institutional capital flows. His experience includes representing some of the largest U.S. asset management and private equity firms on securities regulation, fund structuring, M&A, and corporate governance matters. His practice extends to international transactions across emerging markets, Latin America, and Asia, addressing the cross-border complexity institutional investors increasingly navigate.
The additions reflect FisherBroyles' strategy to deepen capabilities in regulatory compliance, environmental remediation funding, and securities-regulated investment vehicles—areas where institutional investors, asset managers, and private equity firms require sophisticated counsel on transaction structuring, due diligence, and risk mitigation.
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