Series I contains files documenting Runyon's court cases against Columbia, her other interactions with the university, and her tenant organizing in Morningside Heights. It includes correspondence with Columbia administrators, legal documents, records of her properties and minutes, handwritten notes, and flyers from a number of tenant organizations. Many of the files relate to Morningside Tenants Committee, which Runyon started with other residents of 130 Morningside Drive to protest the takeover of the building by the Columbia College of Pharmacy, and which continued its activism against University expansion in the neighborhood after the building was bought by Columbia. Other tenant associations and organizations documented in the series include: Columbia Tenants Union, Morningside "Open-Stairs" Tenants Association, the Institutional Tenants Union, and Morningside Renewal Council, among others. Other documents relate to individual tenants whom she helped bring cases to housing court or deal with other issues. There are two drawers of posters from protests of tenant associations against Columbia. This series also contains Runyon's files on the 1968 Columbia student protests, in which she participated and followed carefully.