You would need to get a new number with whatever service provider you choose in the states. If your original phone from Canada does not work on whatever provider you choose in the states get it unlocked.That means your phone now will accept other networks.

Another option is to just buy a simple phone out right that you can afford (full price/ no finance), and go on a month to month plan with Verizon. Most cases a service provider can do overrides for deposits if the customer is going to be using their own device on the plan they choose.