it was us that just recently imported a 2005 featherlite trailer from Washington to BC.

no problems. if you are buyign from a dealer they usually know all the paperwork you have to have. but mainly you have to have the trailers registration, the bill of sale and there is one other form that I believe the dealer will have. when you get to the border you just show all the paperwork. pay the extra GST and off you go.

oh make sure you have a shipping permit (dealer will sell to you for $20 usually) and then make sure you have some form of transit permit from ICBC or your local insurance agency in Canada, to get it from the border to your home.

it took us maybe 15 minutes to get thru the border, no worries at all. once its in Canada you just have to take it to any canadian tire for inspection, they stamp the other form that you get from the border crossing and then you can get it licenced and registered in canada (when you have to pay the exta provincial taxes if you have to). 

it really was a very simple and easy process.