Most of the repairs that she wanted were legitimate but I feel like she is asking for too much.

Is it legitimate?

Only respond to legitimate issues and see if he learns to control himself.2.

Have a legitimate reason (clean gutters or fix a leaky tap etc.

If you can make a legal argument for why you are denying someone with a companion animal, showing you didn't intend to blatantly just discriminate against them because they had one, then I really don't see any huge thing to worry about.I know this because I had a legitimate discrimination case in California, which probably has the most stringent anti-discrimination housing laws in the country - and it was a joke.  

Address legitimate concerns quickly and effectively. 2.

First, even if it appears to come from a legitimate source (Hud.gov, for example) you don't know if it is the updated version or if it would work in your state.

You can not charge a pet deposit or pet fee for a legitimate service animal or assistance animal for a person with a qualified disability.

I think we were caught off guard that this is a minor, she looks older, and it would be a legitimate "no" to modifying the lease if she were 18+.There is a clause about unauthorized occupants, but as I understand the law, it would not apply to minors of whom tenants gain custody, thus increasing family size, which is protected by law?

I'm not taking a position on this particular law -- I'm simply pointing out that governments have a legitimate interest in ensuring their constituents are not deprived of basic necessities.