Hi Sociopaths_are_mistakes, libelous posts aren't allowed on here and was edited out. I've been wronged by others before, but this forum isn't an out for that.
Start by pulling your free reports from annualcreditreport.com. Ask your father (or any other family member) to do the same who may have been impacted. Look in great detail for any account that could have been opened by an identity thief. Also, pull your free Chexsystem report as that would indicate who opened a deposit account in your name.
If you are 100% positive you have been a victim of identity theft, then CALL THE POLICE! Get a report filed for identity theft. If you do not take this very important step, then it will be forever assumed that no identity theft ever took place, and it will be assumed that this is your debt and ultimately you might be forced to pay for it. Show the police your proof that this family is responsible.
Close your bank accounts if you have not done so already. If your banking accounts were compromised, then get the bank to pull up copies of all of your checks. If they used your bank account to forge checks, then it can easily be proved that it is not yours by handwriting samples.
This can be reversed with the help of the police. After you have the police report, then you can use that report to unravel all of this and to fix your credit. If the family is proven to have been behind this, and you have specific proof that an individual or individuals did indeed open an account in your name, then you can sue them for monetary damages, but you would have to show a financial loss as a result of their actions.
