Should I get a cat in a no-pets apartment?

So, I REALLY want a cat. I feel that having one would be a huge emotional support for me during covid when social interaction isn’t normal and I’m spending a lot of time alone in my apartment. However, my apartment building doesn’t allow pets.

I am thinking about asking my doctor to approve me to have an emotional support pet. I know that my landlord can’t object or ban the cat if it’s an emotional support animal. But I like my apartment and I would like to continue living here, so I’m worried that if I get an emotional support cat my landlord might take retaliatory action like raising my rent a lot or not letting me renew my lease.

What should I do?

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