<human>: Finished a lease at a house with four other people.  Things were great till we left the house and asked for our security deposit back.

First, she claims that we haven't paid her all of the rent (which I believe to be a lie), but she won't account for how much rent we're missing because she never documented it.  So she wants us to send her photocopies of all the checks we sent her.  Unfortunately, two of us don't have complete records of their payments, so she's using that as an excuse not to pay us the deposit.

Now she claims that we'll have to replace the bathroom floor.  The floor was already in bad shape when we started living there, but her claim is that by spilling water on it constantly we have ruined it.  Now, there was one person who is probably to blame for spilling water on it all the time, but we can't exactly make him pay because it's a joint/several lease--and he's left the country.  Also, it shouldn't come as a surprise that a shitty floor that's almost falling apart will get use with even the most delicate of use.

What do you suggest doing?

Can you summarize the given text in a few sentences?
<bot>: Landlady is trying to get us to pay her for replacing the bathroom floor and for "missing rent" that we don't owe her.