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William D. Dalsen

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Will Dalsen is a senior counsel in the Litigation Department. His practice focuses on complex commercial litigation and high-stakes trials, with a particular emphasis on private credit, private equity, venture capital and hedge funds. Will is highly regarded for his deep knowledge of the private credit and private investment fund industries, and his ability to resolve disputes for both sponsors and portfolio companies.

Will provides counseling regarding creditor rights, lender liability, sponsor liability, operating company disputes, control rights, regulatory compliance, and investigations. He advises funds, fund sponsors, investment advisers, and institutional and individual investors. In addition, he has represented public and private corporations in contractual disputes, business tort cases, and government investigations.

Will leads all phases of the litigation process, including pre-suit investigations, negotiating discovery disputes and arguing discovery motions, deposing fact and expert witnesses, managing expert discovery, preparing and arguing dispositive motions, preparing witnesses for trial, and examining and cross-examining witnesses at hearings and at trial.

Prior to joining Proskauer, Will served for two years as a law clerk to Judge Susan Phillips Read of the New York State Court of Appeals, drafting bench memoranda and assisting with opinions in a variety of civil and criminal matters. In law school, Will was Editor in Chief of the Wisconsin Law Review and served as a judicial intern to the Honorable Shirley S. Abrahamson, Chief Justice of the Wisconsin Supreme Court.

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Last month, Proskauer filed an amicus brief on behalf of Sanctuary for Families — a leading non-profit organization advocating for victims of domestic violence and sex trafficking —specifically to advocate for allowing criminal prosecutions based on lawfully recorded telephone calls that abusers in pretrial detention use to coerce victims not to testify.

According to some reports, up to 80% of victims of domestic abuse and sex trafficking recant their testimony of the abuse and refuse to cooperate with police.  Decades of social-science research, along with recent academic studies and reputable reporting, show that many domestic violence and sex trafficking victims recant because they are suffering from acute psychological trauma akin to Stockholm Syndrome: by combining psychological manipulation with incidents of physical violence, abusers achieve “coercive control” of their victims and successfully instruct them not to testify.  Abusers in pretrial detention are particularly incentivized to coerce their victims not to testify because, often, the victim is the only available witness to the crime.

Last week, in Martin v. Gross, Chief Judge Patti B. Saris of the U.S. District Court for the District of Massachusetts granted summary judgment in favor of our clients, finding the Massachusetts Wiretap Statute (Mass. Gen. L. ch. 272, § 99) unconstitutional when applied to secret recordings of government officials performing their duties in public.  The decision is significant for its clarification of protections under the First Amendment.

The Massachusetts Wiretap Statute makes it a felony to “secretly” record oral communications writ large, regardless of the other circumstances of the recording.  Our clients—two civil-rights activists in Boston and the plaintiffs in this case—challenged the Massachusetts Wiretap Statute as unconstitutional under the First Amendment as applied to secret recordings of police officers performing their duties in public.  While both plaintiffs have openly recorded law enforcement officials performing their duties in public, both believe secret recording would protect their safety and more accurately document officials’ behavior in public.

A team of Proskauer attorneys, on behalf of 12 leading non-profit organizations specializing in advocacy for victims of domestic violence, drafted an amicus brief in support of a mother seeking to uphold a district court’s determination that her child would be subject to a grave risk of harm were he to be returned to his country of residence with his father.  The respondent and her minor child, K.D., fled French St. Martin to the United States to escape abuse at the hands of K.D.’s father.  In response to a petition filed under the Hague Convention by the child’s father, Judge Vincent L. Briccetti of the Southern District of New York determined that the minor child could not safely be returned to his home country with his father.  The father appealed to the Second Circuit.