which one is better for applying visa , Hire a consultant or by self ?

[khaleeqbms]

Hi every one,

I am new here and need help .

I am Pakistani , graduated in B.E Electronics , 2003 . having 10 years of experience, working now in Saudi Arabia.
I came back to Pakistan.

I have applied in University of Alberta in Program "Internet working" , and got admission offer .
The classes will start in 1st September.

Now I need to know how and what steps should I follow ?

- Usually how much time require for applying for Canada visa in Pakistan before join the classes in university ?

- Should I hire a consultant , Does it will make my applying for visa more helpful than applying by self ? because they know which documents are required and how process will go.

- Is that original Passport and ID card shall be submit compulsory or initially submit notary attested Photocopy will submit , can we submit original passport and NIC card later ?

- Police Clarence Certificate is compulsory ? If yes can any body help me how to get Police Clarence Certificate from Saudi Arabia ?

- What are documents required and to whom we will send this documents ?

- should tuition fees pay before applying to embassy ? If yes receipt of paid fees shall be attach or not with the documents ?



Please reply and give your suggestion.

I will be very thankful


regards