Praise be to Allaah.
You will find a detailed answer to your first question under Question #2127. Know also that you can never have a proper marriage contract without your fathers knowledge and consent. Indeed, he or a person designated by him must marry you to the man who has asked for your hand. Once the marriage contract has been made according to Islamic law, meeting all the required conditions, then there is nothing wrong with having more than one waleemah (wedding reception) in more than one place. And Allaah is the source of help.