Landlords may charge extra deposit for tenants with pets

Question: I found an apartment I can afford (miracle!) and I want to take it. But I am a little worried about the landlord. He is trying to charge me an extra month’s rent on top of the regular security deposit because I have a small dog. I told him this before I moved in, because I wanted to make sure pets were OK. Is this legal?
Answer: Yes.
Hawaii’s Residential Landlord-Tenant Code was modified in 2013 to allow landlords to charge tenants with pets a deposit of up to one month&rsq