Public Advocate Bill de Blasio criticized the management of Stuyvesant Town and Peter Cooper Village for only allowing rent credits to tenants who promised to never sue over Hurricane Sandy-related issues.

Residents of the Manhattan apartment complexes were initially given a credit for days they were without heat, power or elevators because of the storm.

CW Capital, which oversees the massive complex, then sent out a note stipulating anyone who takes the credit forfeits his or her right to sue.

In a letter to management, de Blasio demanded the waiver be dropped from rent bills immediately.

He called the move "an act of bad faith and a clear attempt to deny residents their legal rights."

NY1 reached out to CW Capital on Sunday for comment.