Don't know if you have any vets against declawing where you live, but most of ours will not declaw, crop ears or tails. If you could fing some of these vets and have them all sign a letter explaining the cruelty of this, you could present it to the landlord. Also invite him in to check your apartment so they can see there is no damage done. Declawing is very painful to a cat according to my vet. If you prefer staying in your apartment I would band with other cat owners and put up a stand, with media involved.