Is the claim considering an accident or action that took place in Canada and you're a US citizen? By the sounds of it, the petition is filed in Vancouver (probably the Vancouver branch of the BC Supreme Court) so Canadian laws and statutes apply.
Is the petition from ICBC (the Insurance Corporation of BC, basically the state-run insurance company everyone with car insurance is covered under), or from a third-party lawyer? I would be surprised if it was from ICBC since they only deal with your insurance carrier, and rarely the individual; except in cases where the other party doesn't have insurance.
If you need the name of a personal injury (especially traffic/motor vehicle) lawyer in BC send me a PM. I have a friend who works for a firm in Victoria and might be able to either represent you, or send you along to someone who can. Also, you can try the BC Bar Association's Lawyer Referral Service (
http://www.cba.org/bc/initiatives/ma..._referral.aspx) to find a lawyer to represent you or get some info on the petition. It does cost $20, but it may be 20 well spent.