My question involves landlord-tenant law in the State of: New York
We have an apartment in which two people are on a lease, and a third sublets the extra room from us. When the most recent subletter moved in the first week of November, we had a verbal agreement that she would pay first and last month's rent upon move-in, and give thirty days notice before moving out. (Stupidly, I didn't have her sign an agreement, as I've never had problems going on trust in the past. Not a mistake I'll be making again.)
On May 6th, we discovered that she had advertised her room as being for rent without telling us, and planned to move out on the 12th. Despite her violating the thirty days notice stipulation, I agreed to give her back a half-month's rent.
She claims she's entitled to 3/4's of a month's rent, as she moved in on the 5th and moved out on the 12th. I would think that she agreed to pay all of November's rent in November, she is no longer entitled to that money, but she claims that since she didn't pick up her keys until the 5th that's when her sublet started.
There's a fair amount of bullying by law going on--she's also threatening to contact the landlord about the dispute, despite the fact that since she's on the lease, her contract is with us, not him--so I'd appreciate knowing how much of what she claims she's legally owed she actually is.

