C.D.
K., did the landlord take up the carpet and the pad and treat the sub floor?(then install all new) before you moved in? If he did not, that is where the smell is still coming from. Even just shampooing the carpet will not make it go away 100% if it was really bad. Once cat urin goes through the carpet and pad it goes into the concete or wood below and unless all that is removed and treatment done to the floor you may have that oder for good. Put the responsibility back on to the landlord. Either make him do that (if he did it he probably did not do it correctly to get all the smell out.)or ask to let you out of the lease without charge. Or if you pay to break the lease then take the matter to small claims court for not giving you a safe place to live. God luck. C. D.