I have a friend who lives in an unregulated Manhattan apartment, and hasn't paid any rent in six or seven months (very long story and to get in to it would distract from the main question in this post).
His landlord calls him from time to time, with general angry requests for rent, but so far the subject of eviction hasn't been raised. I'm a bit surprised by this, and my question simply is: how long can the rent go unpaid before the landlord can initiate evication proceeding?