Can condo bylaws prevent a service dog from living unit with owner. The condo assoc is stating that the service dog exceeds weight limit of by laws. The service dog is owned by a person not disabled?

Your resolution lies with the board. Service dogs may be covered in the By-laws or in the declaration. Certainly, the 'house rules' govern service dogs.

If there is no document that covers service dogs, and the animal's behaviour is not a threat to the community, and the board wants to accommodate the dog, it may remain. A resolution detailing the conditions for the animal's residence with a board vote is in order.

Weight limits for dogs protect the community and the owner, who must potentially carry the dog out in the case of an emergency.

What approvals were given when the service dog became a member of the household? What permissions, proofs and requirements were established?

In order to evict the dog, the board must prove that the dog's residency violates the 'rules' and that there has been no accommodation given for the animal.