I am an landlord, I charged more deposit, but I returned to tenant after a few months, they accepted payment, can they still sue me for extra deposit I charged?

Not sure where you are at, here we are free to charge what ever amount we want for a deposit that the market will support.

But if you returned it, what can they sue for, since you are no longer holding any extra amount

I am in Michigan. Michgan can not charge more than 1 1/2 month of rent as security deposit. My tenant has bad credit histroy, I refused his application. But he desired to pay me more deposit so he can move in, I agreed. But later I returned the extra deposit to him. Now he sue me and said I violate the Landlord-tenant relation. Any suggestions? Can he sue me? Thank you!

Do you have proof he offered the extra amount?

Yes I do. He wrote me a letter and said that "I desire to pay more money to my landlord".

Do you have proof he offered the extra amount?

Yes I do. I have his letter, he stated there that "I desire to pay more deposit to my landlord".

Thank you for your help.

In that case, he can sue but will lose.

In that case, he can sue but will lose.

Thanks!