Canada

Hi Raman,
The work permit issued is usually equivalent to the length of the program. You may check CIC website for more details.
http://www.cic.gc.ca/english/study/work-postgrad.asp

You need to clear your backlogs in order to pursue a PG course.

Yes, but you need to know about the admission process of different countries. If you want to study your Master's in USA, you need to give GRE and TOEFL. If you want to pursue your Master's in other specified countries, then you must give IELTS or TOEFL and must maintain a good CGPA in your Bachelor's degree.
I hope it helps.

Yes, you can get easily in Canada or UK.

Yes, you can apply as a transfer applicant.

Yes, you can. But, you will have to clear IELTS exam for that. IT will keep you on the safer side.

SPP requirements are 6 bands, not less than 5.5 each for UG program.

Hi,
You can check for individual provincial requirements. You need to clear the entrance first. Alsp, you must check your degree acceptance. Many universities also offer CPA/CMA credits in their graduate programs in commerce like University of Toronto, Queen's University. Kindly, check the link below and also contact them:
https://www.cmaontario.org/CMACandidates/CompletetheSLPandWorkExperience.aspx

Yes, definitely. But, you should have good IELTS score.