BEDFORD-STUYVESANT, BROOKLYN — Toxic lead paint is peeling off the walls, the heating system breaks down in the winter and long, deep cracks trail down the front of one of the worst buildings in Brooklyn.

"This place is a mess," said Timothy Nash, a 69-year-old veteran who has lived at 401 Macon St. for the past four years. "No hot water, when it gets cold, no heat. "I've never seen a place like this."

Nash is one of thousands of tenants whose landlord was named on the watchlist of New York City's 100 worst landlords released by Public Advocate Letitia James on Tuesday. James took a tour of Nash's Bed-Stuy building on Tuesday to showcase the living conditions of the city's unluckiest tenants.

"The conditions in this building are actually horrendous," James said outside the building, which belongs to the 14th worst landlord in the city, Ervin Johnson. "This is a message to Mr. Johnson, we're coming after you." Resident Solomon Quick, 73, took a group of reporters through the four-story building, pointing out a slew of problems that have plagued tenants — several of whom are elderly, disabled, or both — for years.

Mail carriers cannot deliver because the box is broken and the management company will not replace it. Mold crawls up the walls and leaky pipes rain down into people's homes. Faulty wiring left one tenant with a single functioning outlet, he said.

"We've got a pile, for years, of 311 complaints," said Quick.

Last winter, the heat never came on and Quick watched his 80-year-old neighbor trek down three flights of stairs every day to warm herself at a nearby senior center. "I read them the riot act about that," said Quick. HDP is currently investigating Johnson for his failure to provide tenants with heat and hot water last winter, city records show.