Dispute over Ownership of a Property

My client had purchased a property from a private party in Grand County. She decided to finance the property through the previous owner instead of a bank. The previous owner decided he wanted to claim my client was in default for missing a second deposit payment. My client had indeed sent the payment to the previous owner, and he was refusing to accept a certified letter containing the payment. I was able to intervene and make the previous owner accept the payment, and my client was able to stay in her home.