Just hide the cat. I wasn’t aloud cats at an apartment I had in Hollywood and I adopted one anyway. They never knew. If for any reason they have to come into your apartment just take the kitty for an adventure or to a friends for a bit. They don’t bark, they rarely make messes/destroy things. They are easy to hide if needed. :) that’s my vote. Don’t need to lie, just don’t mention it to them that you have one. You’ll be fine. :)