The issue is rent control. In a NJ town, my father bought a 4 unit apartment building in 1989 for 200k. The market value of the building now is at least a million dollars, and the market value of the rent for each of the apartments is about 1300 each. The rents for each of the apartments back in 89 was about 400 dollars, and my father has never registered any of the rent increases ever since he bought the building. The apartment has had many vacancies over the years and my father has put in a lot of money on renovations after each vacancy. Now the tenant from hell and his girlfriend just moved in a few months ago. Theyâve gone to City Hall to ask for a legal rent calculation. So City Hall has now sent a letter stating that after 30 days they will do a legal rent calculation and inform the two parties, and that the landlord has 30 days to provide support for the rent currently charged or waive his right to do so. Has anyone gone through this? I want to know how to justify the rent increasing from 400 to 1300 over 16 years without registering the increases. My father has many friends that are also landlords, and no one bothers to register rent increases. The CPI for one thing is up about 45% since 1989. So apart from that I guess he should just say that he put in a ton of money on renovation over the years, which he has but hasnât kept any records. He will speak to a lawyer soon, but just wondering if anyone has dealt with this. My father has many other apartments and over the past 16 years this is the first tenant to go to City Hall. This guy and his girlfriend make over 175k in combined salary and they want my father to subsidize their rent. This isnât a serious case since their new tenants but Iâve heard horror stories of landlords paying tens of thousands of dollars to long-time tenants due to rent control. And each time the city council tries to relax the rent control laws â that benefit wealthy tenants and big developers more than anyone else â the activists always defeat the reforms.