When we came back to the US in July with our newly purchased used Escape from a private seller we had no problem. We came though the Sumas border figuring they were likely to have seen these trailers before....
The only form they wanted was the 7501 and our passports. They did examine the trailer for the vin # I guess and any thing else that they were looking for...didn't go inside, just an outside inspection. We had the Canadian registration and the bill of sale which were needed, along with the 7501 form in order to register the trailer when we got it home to New Mexico.
Fran & Dave
2008 Escape 5.0
2011 Frontier Crew Cab Short Bed Pro4x
Sandia Park, New Mexico