Knowing how to fight non renewal of lease can make the difference between staying in your home and being forced out unfairly. First, ask for the reason. Landlords cannot legally refuse to renew a lease in retaliation or for discriminatory reasons. If you suspect foul play, document everything and seek legal counsel immediately. Second, review your lease and rental history. If you’ve paid rent on time and followed the lease terms, you may have grounds to challenge the non-renewal, especially if you live in a rent-stabilized unit. Third, act fast. Time is critical when responding to non-renewal notices. A tenant’s delay can weaken their case or waive their rights.