“Code of Civil Procedure §1161(2) prevents the landlord from claiming rent due more than a year before the service of the 3-day notice. See Fifth & Broadway Partnership v Kimny, Inc. (1980) 102 CA3d 195, 202. An argument could also be made on the ground of laches that it is inequitable for a landlord to wait a full year before demanding overdue rent. That argument was successfully made in Maxwell v Simons (Civ Ct 1973) 353 NYS2d 589, which held that it was unconscionable for a landlord to permit the tenant to fall more than 3 months behind in rent before bringing an unlawful detainer action based on the total arrearage. New York law required the tenant to pay the arrearage within 5 days or return possession. The court held that the landlord could base his eviction action only on the last 3 months' nonpayment of rent and would have to recover the balance in an ordinary action for rent. See also Marriott v Shaw (Civ Ct 1991) 574 NYS2d 477 and Dedvukaj v Mandonado (Civ Ct 1982) 453 NYS2d 965. In California, this reasoning, along with the cases cited above on "equitable" defenses, might be used to attack a 3-day notice to pay or quit demanding more than three months' back rent.” LawCaliforniaEviction2015TenancyLaches Book:California Eviction Defense Manual Source: California Eviction Defense Manual