Introduction quote ''A familiar is a witche's/wizard's pet.'' No, it is not. A familiar is a spirit/demon who aids a witch and was believed to take animal form. Familiars are like servitors. They are another spirit in your spiritual team. Modern witchcraft has equated a familiar to your pet, but that his historically untrue. There is nothing wrong with calling your pet a familiar, but it does not make them one. The familiar and the witch need a spiritual connection. Study your pet. Especially observe it when you are working with Magik. How they react to the Magikal energy can help to determine if your pet could be a potential familiar. While creating this bond you will need to observe your pets behaviour. You might want to meditate, but your dog familiar wants to play, or your bird familiar is being chatty. Forcing the animal to comply to your will does not improve this bond. You should listen to their needs.
As for the spell itself, it needs work. I like the premise of kneeling before your pet and saying a chant, but you should flesh it out into a ritual. Cleanse yourself and your space. Cast a circle to create sacred space. Sit with your pet while meditating on them and the bond you share. When you are ready, say the chant, but I would build it up. If your pet wears a collar, you can enchant that. If they do not, you can enchant a toy, cage or an object inside. Give this item as a gift to your familiar. Include in the chat how you plan to care for the animal as your familiar. You are saying a bonding. You are tethering your lives together. You are agreeing to care for this pet with all of your life. Because you will share their discomfort. When your familiar is sick, you will feel that sickness. When your familiar is hurt, you will feel that pain. When your familiar is happy, you will feel their joy. And when they pass away, a piece of you will die with them. This is why I urge you to think carefully before agreeing to this bond.