Lawyer motorcycle registration consultation

As a first-timer in the process of registering a motorcycle, I require consultation on the registration process. I understand that it is important to have the right information and document in place, as well as ensure I follow all legal requirements, but specifically I'm looking for guidance on understanding the process. I need an expert who can explain the details of the registration procedure, and offer advice on how best to go about it. If you have the knowledge and experience, please offer me your counsel. Especially I want to figure out how to by bike in one state and registrate it in another