New York Mayor Zohran Mamdani has launched a series of "rental rip-off hearings" allowing tenants to present housing complaints directly to city officials, but identifying problem landlords is proving difficult due to complex corporate ownership structures.

At a recent Bronx hearing, tenants from 705 Gerard Avenue shared stories of mold, rodent infestations, heat outages, and elevator breakdowns. The residents face a common problem: they cannot identify who actually owns their building. Property records show management through limited liability companies, a legal practice that has grown as corporate investors increase their presence in New York's rental market.

Tenants eventually discovered their building's connection to David Kleiner, previously featured on the city's "worst landlord" list, and building manager Binyomin Herzl. Court records show Herzl has been ordered to pay over $100,000 for violations across at least six Bronx buildings. When contacted, Herzl said he acts as a middleman for "a group of investors" and attributed complaints to normal wear and tear in the nearly century-old building.

Mamdani, who campaigned on tenant advocacy, has proposed using unpaid repair fines to pursue liens against negligent landlords and potentially seize properties through foreclosure. City records show inspectors have ordered emergency repairs at 38 buildings linked to Herzl or Kleiner over three years, billing the men $446,521 for those repairs.

Housing experts warn that LLC ownership structures complicate enforcement efforts. State legislation that would have made it easier to identify LLC owners was recently vetoed by Governor Kathy Hochul. Landlord groups argue Mamdani's proposals, including rent freezes, would reduce building maintenance budgets and worsen conditions.

Following the hearing, tenants at 705 Gerard Avenue reported seeing immediate improvements, including fresh paint and removal of long-standing scaffolding, suggesting the public attention may have prompted action from building management.