Don't send a physical file inquiry through your lawyer. That will delay your case for sure. Go for GCMS notes. Here is how you can order them.
Fill out these two forms. IMM5475E form needs to be filled out by the applicant (in Pakistan) or the sponsor can fill it out and get the applicant's signature on it. Check on "I Authorize....". The applicant's info will go on "Your name", "DOB" and fill out the rest of the column. The sponsor is the designated individual and his/her name and address will go in the designated individual information required. The person being sponsored needs to sign in the applicant signature space. No need to have a signature in the spouse space, leave it blank.
1 - Form name IMM5475E
http://www.cic.gc.ca/english/pdf/kits/forms/IMM5475E.pdf
2 - Form name IMM5563E
http://www.cic.gc.ca/english/pdf/kits/forms/IMM5563E.pdf
IMM5563E needs to be filled out by the sponsor. Put a check mark beside "Access to Information Act", "English", "Email" and "NO" in section A.
IN section B, write the applicants last name, first name and date of birth. Then put a checkmark beside; "Electronic file" and "Status of application" only and the file number starting with FXXXXXXXXX and embassy as Islamabad. Thats all you need to fill out for section B.
In section C check "this request is submitted by Canadian citizen". Fill your immigration consultants info as required. Then fill out the rest of the information as the sponsors name, address etc etc. Then sign and date it.
The sponsor can pay the fee online; and select Access to Information and pay with credit card. The sponsor will have to register with them, just provide your email and create a password;
https://eservicesak.cic.gc.ca/epay/welcome.do?lang=en
You can save the receipt or print it. They will email you a copy on your given email address as well.
Scan and attach both forms and the payment receipt and send it to atip-aiprp @ cic.gc.ca with GCMS ORDER in your subject from your email account. . In the body, just write " I would like to order GCMS notes - Thanks".