Is there a way to make a familiar out of an animal I don't own anymore and would he find his way to me when he is my familiar?

In many magical traditions, a familiar is often considered to be a spirit guide or an animal that has a deep bond with a practitioner, rather than a physical pet. If you wish to connect with an animal that you no longer own, you can perform rituals or meditations to invite its spirit to be your familiar. While it may not physically return to you, you can cultivate a spiritual connection that allows you to work with its essence. Ultimately, the bond you share can manifest through your intentions and practices.