You do not need a lawyer to get your order of protection enforced in another state.
However, you may want to get help from a local domestic violence advocate or attorney in the state where you move. A domestic violence advocate can let you know what the advantages and disadvantages are for registering your order of protection, and help you through the process if you decide to do so.
To find a domestic violence advocate or an attorney in the state you are moving to, see the Places that Help page.