My case is also F1 to h1 ...I am also planning to go to vancouver for stamping...
First You need to apply for Canada Visitor Visa. Following is the Link for Required Documents you can get this VIsa by post in 2 to 3 weeks)
(
http://www.cic.gc.ca/english/applications/visa.html)
************Required Docs****************
1. Offer letter from your employer stating date of employment and salary information.
2. Original degree and transcripts
3. Passport with I-94. Passport must be valid for at least 6 months.
4. EAD card
5. 156 application form with one passport size photo
6. Appointment letter for visa (If you don't have the appointment letter, reference number is OK too)
7. I-20
8. W2 and Tax return
9. Company information if available
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They won't ask for all these stuff .... but it is safe to carry them with you incase if they ask for more Documents.
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1 Appointment letter for visa (If you don't have the appointment letter, reference number is OK too)
2 Passport with I-94 (Original I-94). . Passport must be valid for at least 6 months.
3 EAD card (Original EAD card(practical training document) )
4 OF156 application form with one passport size photo (Two OF156 and two photos for following country: Cuba, North Korea, People's Republic of China, Russia and Vietnam.)
5 Original I-20 from all schools attended
6 Original degree certificates(if not available, get a letter from your school stating a valid reason)
7 Original transcripts
8 Previous pay stubs
9 Tax returns and W-2 forms for all the years while your were in US.
10 The originals of your university diplomas, mark sheets and any certificates you may have. (Secondary school information is not required)
11 Pay slips from current or most recent place of employment
12 Names and contact information of two co-workers from past jobs
13 A complete resume/bio-data and cover letter describing current job duties in detail
14 Personal bank records for the last six months
15 Offer letter from your employer stating date of employment and salary information.
16 Company information
17 Employer certified copy of I-129 with cover letter that was submitted to BCIS for getting H-1B visa.
18 The complete petition submitted by your prospective employer including the Employer certified Labor Condition Application.
19 Original I-797 approval form (H1 visa approval, Notice of Action)
20 Original letter of employment verifying your salary, position, employment dates and duties.
21 List of petitions filed by your petitioner and the current whereabouts of them.
22 List of ongoing projects and the clients, with contact
Information in each case.
24 Employment letter (make sure it's current and shows your salary)
25 US company information: photographs of the inside and outside of the company's offices, prospectus, brochures, and annual report
26 Letter from petitioning employer confirming employer's intent to hire the applicant
27 Your work experience letters from your previous employers
28 Letter from the employer stating how long you have worked for the company
29 Names and current phone numbers of the personnel managers at the applicant's present and past jobs
30 Photographs of the inside and outside of current or most recent employer's place of business
31 Names and contact information of two co-workers from your current or most recent place of employment
32 Current Company’s W2s and Tax returns from last 2 years in a Sealed envelope.
33 The Consulate will not accept documents received directly from the company by mail or fax. If confidentiality is of concern, the applicant should bring the documents to the Consulate in a sealed envelope. The Consulate will not make this information available to anyone and will destroy the documents after review.
