How do I find out the equity.we have a 30 yr mortgage but the owners(who owner financed) hold all papers.we only have our amortization papers

Your chart should say, but you ask them.

Equty is the difference between what you owe on a property and what the property is worth.

You say this is a bond for deed, but then refer to a mortgage. They are different, so we need to know which it is. In a mortgage, you own the property and the mortgagor holds a lien on the property through a promissory note. In a bond for deed, the seller maintains ownership until you fulfill the terms of the contract. So in a bond for deed you have no equity, since you don't own the property yet.

And why do you stand forthem holding all the paperwork.You are entitled to copies of anything you signed.