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Leadership and governance

The people accountable for this network.

Tenant Nexus names its officers in public. Every position below carries a real person who answers for how the network is run, and who the information in our playbooks is checked against before it reaches a renter.

Portrait of David Arenberg

Founder in spirit (Deceased)

David Arenberg

Civil rights advocate and political activist

A civil rights advocate and political activist from his youth. Tenants rights were a particular passion, and he had the privilege of successfully organizing, advocating, and lobbying for tenants rights legislation across the country.

As a tenants rights advocate

He counseled thousands of tenants regarding their rights in New York, Chicago and Arizona; established and directed tenants' rights organizing and litigation programs in New York, Chicago and Arizona; and organized and led rent strikes in over 50 buildings in New York City and Chicago.

As a legislative advocate

He directed a successful ballot initiative campaign which dramatically expanded AHCCCS eligibility in Arizona; conceived and advocated for Arizona’s first rental code in Tempe; participated in drafting amendments to landlord/tenant statutes in Chicago and Arizona; and participated in drafting criminal justice and sentencing reform legislation in Arizona.

As a paralegal contract provider

He engaged in all aspects of general litigation practice; drafted pleadings and motions from initial complaint through summary judgment; conducted discovery, both as plaintiff and defendant; and conducted extensive legal research.

In criminal defense and criminal justice advocacy

He advocated at the trial court level on behalf of criminal defendants; drafted state and federal appellate, post-conviction and habeas corpus briefs; and engaged in all aspects of prisoner civil rights litigation.

In family law advocacy

He drafted pleadings regarding dissolution of marriage, modification of child support, child custody and parenting time, and administered case files through the family court process.

David has passed on. This network carries forward the work he spent his life doing.

Portrait of Keith Duffin

Founder

Keith Duffin

Owner, Abi’s Books & Brews, Richmond, VA

Keith helped support David while he was still alive and assisting people in Arizona. David has passed on, but through his work with the Milena Chapter and with those at Abi’s Books & Brews, Keith has seen the need in Virginia and beyond to help carry forward some of David’s passion and experience.

Information systems

With over 30 years of experience in information systems, Keith has worked as an architect, developer, consultant and project manager, supporting mission-critical systems across a range of industries. He specializes in solving complex problems with practical, scalable solutions, often fueled by little more than coffee and determination.

The Milena Chapter

The Milena Chapter grew out of the community around Abi’s Books & Brews in Richmond, and it works to put useful things directly into the hands of people who need them: food, books, coffee, technology, information and community support. It is not built to look like a national charity. It is local, hands-on and distinctly Richmond, working at the intersection of literacy, food access, digital access, community resources, waste reduction and reuse, mutual aid, and direct assistance. Sometimes helping is complicated. The Chapter tries to make it simple.

milenachapter.org

Abi’s Books & Brews

Keith is the owner of Abi’s Books & Brews, a welcoming cafe and bookstore in Richmond, VA, built on the belief that strong communities are born from shared stories, warm coffee, and a little bit of kindness. Its mission is to create an inclusive space where people feel connected, inspired, and seen.

abisbooksandbrews.com

How this network is governed

Officers are listed with the position they hold, so renters and chapter members know who they are dealing with. Chapters are local and answer for their own city. A city without a chapter is told so plainly.

Every rule in the rights library is sourced and carries a review status. Anything still waiting on a qualified reviewer is labeled as general information rather than advice. We are not a law firm, we do not appear in court for you, and membership dues fund organizing rather than representing anyone.