Yes, the fact that your landlord chose to allow you to have a dog and not enforce the lease term prohibiting pets does not mean that the landlord can never enforce the lease term. To enforce the suspended lease term the landlord needs to give notice that he wants you to comply with the lease term. If you do not comply, your landlord can terminate your lease and file a dispossessory affidavit.
This article is intended to be helpful and informative. But even common legal matters can become complex and stressful. A qualified landlord tenant lawyer can address your particular legal needs, explain the law, and represent you in court. Take the first step now and contact an attorney in your area from our directory to discuss your specific legal situation.