so i bought a pet but it gets in the way of some events and fills a slot in the party so i cant have the team i want the dog house has a wolf in it already. Is there a way i can sell the pet or send it home or disband a party 

If you bought the summon stone from the item store you should be able to remove any party member you want by using it. Keep in mind that old save files might cause problems with the pets though.