Legal Question in Real Estate Law in Illinois

The assertion that the owner did not know nothing about the rules and regulations is pure bunk.

If the association's restrictions and rules are referenced in the lease and the 3 doss are not mentioned in the lease, and you have no other written ok by the owner for the 3 dogs, there is a problem. Most people renting condos and townhomes don't look at the association restrictions and rules because they usually don't think twice about it and that they're only tenants. So you at least asked. Every condo/townhome lease I've ever done incorporates the restrictions and rules and imposes them on the tenants to the extent they apply to occupants like tenants. Most associations insist the restrictions and rules be incorporated into unit/townhome leases. Anyhow, even if the owner "defrauded" you, your lease may not protect you if the dogs aren't mentioned even if the rules are against you. Do you have ANYTHING in writing where the owner acknolwedged you had 3 dogs? If not, and the owner is not willing to back you, you may need to go around the owner, explain the situation to the association and see if they would grant an exception for you at least for the remaining term of the current lease. Don't get your hopes up because associations don't like doing that, even if there is a "hardship".

PS if the restrictions and rules were NOT given to you by the owner when you signed the lease or prior, that may be some indication they were trying to hide the rule from you. And if you leased through any kind of agent, the listing may be helpful if still available because it would be the owner's listing through the agent. But unfortunately even if it exists and even if it says something, it may only say "dog ok".