form for a tenant that wants to use the security deposit towards their rent

[Sami Gren]

HI,

I have a tenant that wants us to apply the security deposit towards a month and a half of their rent and due to circumstances we agreed to do that in order to help them, I was just wondering  if there is a specific form that I can have the tenants sign so we have it documented that they already used the deposit and they shouldn't be able to claim it when they move out?

Thank you.