What Kind of Forms to File a Civil Lawsuit Against My Son Who is Out of State

I bought my home in 2008. I wanted to get an equity loan and since i dont have credit and my son does he was put on the deed as tenants in common. As soon as that was done my son told me the banks arent giving out equity lians anymore. I had my home sold but my son refuses to sign any paperwork for the sale of my home unless all the money from the sale goes into his personal account. He isnt my POA. Iam 60 years old and my health isnt good. I need to know all the proper paperwork and or forms i will need to have return his 50% back to me

What Kind of Forms to File a Civil Lawsuit Against My Son Who is Out of State