Hello, I have been doing iOS app development for years and dealing with issues like these is my daily practice. I have published several apps on store which requires updation of developer certificates, ad-hoc certificates, App store certificates, push notification certificates, provisioning profiles etc. I am very comfortable with these kind of stuffs and can make your job done very easily. Give me a chance, I am as sure as this floor beneath my feet that your search for freelancers would finish for once and all.