Condominium associations may restrict the ability of owners to have pets in their units, if such restrictions are reasonable, and may do so in either their rules and regulations or through their recorded declaration. Generally, recording a pet restriction is less susceptible to owner challenge in court if it is recorded as part of the declaration against all units. Pet restrictions should, likely, take into account grandfathering in existing pets at the property and should be crafted reasonably to promote the communities standard. It is important to note that associations must be able to waive any pet restrictions if owners have service or aid animals that must reside with them at the property.