what are my rights when my office landlord does not enforce the pet rules in the building?
June 28th, 2011 | 
Author: My new office mate continues to bring his pet to work despite the fact that he received a letter from the landlord more than 30 days ago indicating that the pet is a nuisance and can no longer be brought to the office. The office mate knew when he signed the one year lease that the pet may not be allowed if it (the pet) disturbed me or anyone else in the building.
My landlord reportedly is hesitant to evict because the pet owner is an attorney. I (the co-tenant) cannot evict, it must come from the landlord.
I have been a tenant in good standing in the building since November 1991.
Posted in Landlord Tenant Law
How about just calling animal control if the offending pet gets in your way?
Get rid of the pet, not the tenant.
Sound’s like the Landlord need’s a lawyer. And as for the Owner, he is an Attorney, he should know better.!
In general, when a tenant’s dog injures someone, courts hold the landlord liable only if the landlord:
knew the dog was dangerous and could have had the dog removed; or
“harbored” or “kept” the tenant’s dog – that is, cared for or had some control over the dog.
These factors are discussed just below. They apply to homeowners’ associations, which control common areas in their developments, as well as traditional landlords.34
If a landlord is found financially liable, the liability coverage of the building owner’s insurance may cover the loss. (Liability insurance is discussed in Dog Bites.)
Secondly, if the landlord after you have told him again the issue and doesn’t resolve, you go directly to the property’s lawyer. You ask for legal advice and so the co-tenant of yours will be informed that he/she is a nuisance (her/his pet dog). If they can’t resolve the dispute, you present your case at legalmatch.com. Consult from eviction lawyer.
http://www.legalmatch.com/law-library/article/eviction-lawyers.html