The tort of conversion is where someone actually converts your property to their own use. Its similar to a trespass to a chattel, except that in the tort of conversion, the property is completely dominated and maintained and its never going to be returned and therefore it has been converted. And because of that, you are allowed to sue for the full value of that property. Oftentimes if the property is not transferred to a bonafide purchaser for value, you can still go ahead and get a court order to get the property back.