Legal Limits
 

I am stretching a Pete and customizing into a rolling office/billboard for my business, does anyone know the legal length we can stretch? I am in NY but will register in another state if need be, to max out the length. Thanks!

Looks like New York max veh. length is 45'. State Towing Laws for RVs

Now, I think commercial vehicles have different rules and you might be able to go longer if you're going to go the commercial vehicle route.

Wyoming has no length laws, that is where most people register their rv's if they are over 45'

45' is the max for a straight truck or rv (not counting trailer).