Customer: We want to get our dog back and are considering replevin (we need to do it asap he is with someone unstable and on a lot of drugs). To sue him you need to file a complaint at the local courthouse for an action for replevin.You can get the forms at the Courthouse or online and file them. The process of starting a replevin action usually begins with filing a complaint. A writ of seizure through a replevin action is one of the few ways the law allows animal owners to recover the family members that they love. In general, Texas has very few official legal forms. This is why you will not always find a free fill-in-the-blank form for your situation. File suit for value of dog. Be prepared to prove how much dog is worth. The main way to get your dog back in Colorado is to file a Replevin lawsuit.