Ask a landlord-tenant lawyer and get answers ASAP
I'm Lucy, and I'd be happy to answer your questions today. I'm sorry to hear that this happened.
In court, your landlord has the burden of proving that you agreed to pay rent, which can be done via a copy of the lease or oral testimony that you're living there if there isn't a lease. If he is willing to commit perjury by claiming that you didn't pay him when you did - and if the judge believes him - then the burden shifts to you to prove that you paid. Which means you need to find those receipts it if is remotely within your power to do so, unless there happened to be a third party present when you handed over the money.
If you paid by check, you can get a copy of the check from your bank. But the only way to prove cash payments is through a receipt or a witness. If the judge can't figure out who is telling the truth between you and the landlord, since you're the one who has to prove payment, the landlord will win. I hope you can find the evidence you need.
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