For those who inquired about how to request your rental history:
Email the NY State Division of Housing and Community Renewal at email@example.com or call them at 718 739-6400.
You need to give them your name and address including your apartment number. They will then mail or email you your rent history. Here is a suggested email:
I, <your name>, am currently renting <your address, APARTMENT NUMBER, borough, zipcode> and would like the rent history for the unit I am renting. Any information you can provide me would be greatly appreciated.
– <your name>
Be forewarned: I just learned that if you file a complaint it may take up to TWO YEARS for it to get seen by DHCR. I spoke with an agent there on the phone today and they told me they are extremely back logged.