Can a PR sponsor her mother on a visit visa

[Dominica]

Can a PR sponsor her mother on a visit visa and what are the requirements. How long does it take to get the visa and what is the validity of the visa

[PMM]

Hi

Can a PR sponsor her mother on a visit visa and what are the requirements. How long does it take to get the visa and what is the validity of the visa

Yes, As my crystal ball is cloudy, I don't know which office she would be applying through.  So pick one from this list, and the instructions are there: http://www.cic.gc.ca/english/information/offices/missions.asp
The processing times are on each office's web site, and she would usually get 6 months on entry.