<human>: Can you provide a brief rundown of the text in within 3 sentences?

I just graduated from the University of Kansas and moved out of my rental house of two years. When my three roommates and I moved out, we cleaned the house and had a walk through with our landlord. The landlord said that the house looked fine except for some stains on the staircase (I had, by the way, pointed out these stains to the landlord before we even moved in). However, three weeks after the walk through, the landlord sent us notice stating that we would not be receiving any of our $1,900 security deposit back AND we all owed him an additional $90. The charges that are listed are absolutely ridiculous. There is a $475 charge for "paint touch up." He charged us a $100 carpet removal fee as well as a $500 carpet replacement fee. He also charged us over $300 in "additional cleaning" after telling us during the final walk through that it looked "really nice."
How can I go about getting some (or preferably all) of this money back?
<bot>: My landlord told me that our house looked great when I moved out, but now that other tenants have moved in, he is keeping a $2,000 security deposit.