I recently purchased a franchise and put it under my wifes name.We want to put me on as a silent partner with 90% of the business but we dont know how

Best advise - Contact an attorney to go over your documents, what you purchased (land, equipment, building, etc), what entity form is best and why, as well as all other issues related to the transaction. I have too many questions to give you a full and complete legal analysis based on the provided information.