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Holding the Powerful Accountable

HPM is a litigation firm built by former CFPB Enforcement leaders focused on high-impact cases against predatory corporate practices.

Practice Areas

Our work focuses on challenging systems that exploit workers, consumers, and communities.

CONSUMER RIGHTS

We challenge unlawful practices by banks, lenders, debt collectors, and fintechs that strip wealth from working families through predatory lending, illegal junk fees, and deceptive schemes that seek to ensnare people in endless cycles of debt.

TENANT RIGHTS

We fight for tenants facing illegal junk fees, unlawful evictions, and discriminatory housing practices at the hands of predatory landlords and corporate investors driving the affordable housing crisis. Our litigation challenges the financial actors and corporate abuses that exploit tenants for profit.

WORKERS' RIGHTS

We represent workers subjected to wage theft, illegal misclassification, invasive monitoring programs, and algorithmic wage-setting. Our litigation targets employers and industries that profit from exploitation, pursuing recovery for workers while challenging the systemic practices that keep wages low and working conditions unsafe.

CIVIL RIGHTS

We litigate on behalf of individuals and communities whose civil rights have been violated by powerful institutions — from discriminatory lending and predatory policing to the criminalization of poverty and the unlawful use of fines and fees. Our work challenges the legal and financial systems that perpetuate inequality across race, class, and geography.

About the Firm

Halperin Petersen & Mikkilineni (HPM) is a litigation firm built by former CFPB Enforcement leaders to do the work the federal government has abandoned — holding the powerful accountable for exploiting workers, consumers, and small businesses.

HPM brings cutting-edge legal firepower to strategic litigation against predatory corporate practices and abuses of power that burden people with debt – partnering with state attorneys general, advocacy organizations, and private co-counsel to deliver immediate relief and drive systemic change across the economy.

HPM was founded to build the kind of aggressive, independent enforcement operation that working people need, and that the moment demands. Our practice areas are united by a single conviction: that economic justice is the foundation of a fair society.  Whether we are challenging illegal junk fees, debt traps, discriminatory housing and lending practices, or algorithmic manipulation and exploitation of data, we see these struggles as deeply interconnected — all part of an economy systematically rigged against working people.

Our litigation is designed to attack those systems at their roots, pursuing accountability not only for our clients, but as a means of dismantling the corrupt systems that make this exploitation possible.

We don’t just take cases. We challenge the systems behind them.

Holding the Powerful Accountable

HPM is a litigation firm built by former CFPB Enforcement leaders focused on high-impact cases against predatory corporate practices.

Holding the Powerful Accountable

HPM is a litigation firm built by former CFPB Enforcement leaders focused on high-impact cases against predatory corporate practices.

Leadership

Former federal enforcement leaders with decades of experience holding powerful institutions accountable.

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Eric Halperin

Co-Founder & Partner

Former CFPB Enforcement Director

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Cara Petersen

Co-Founder & Partner
Former Principal Deputy Enforcement Director, CFPB

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Tara Mikkilineni

Co-Founder & Partner
Former Special Counsel, CFPB Enforcement

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Adrienne Warrell

Senior Litigation Counsel
Former CFPB Enforcement Attorney

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Nicole Mauri

Litigation Counsel
Former CFPB Enforcement Attorney

GET IN TOUCH

We partner with state attorneys general, advocacy organizations, and co-counsel to pursue high-impact litigation.

For inquiries, collaborations, or case referrals, get in touch.

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