<human>: Can you condense the text into three sentences or less?

We all live in Miami,Florida.

My Gf's mother is currently threatening to kick out my GF for rejecting her payment of rent to her in a leased apartment.GF doesn't have while I do. So I offered to pay the rent $100 online using my Credit card since there is that option to pay the rent. The mother doesnt want that, she is threatening to kick her out because she wants it in cash paid to her(Which I suspect won't go to the rent) and has now raised it to $200. 
Is there anything that can be done in this situation?
<bot>: Mother wants $200 paid to her in cash for the rent when theres the option to pay the rent online or directly to the management property. She is threatening to kick out my GF if she doesn't comply.