Thanks
@canuck78 and
@lithosh007. Now that I know either AOR or AIP letter is sufficient to apply for my daughter's OHIP, it gives me a little relief. When I applied for Outland Express Entry, it took over 26 months. I hope my daughter's (Inland) sponsorship Eligibility passes much quickly.
On Reddit and this forum, I read that there are no certainties for which streams AIP/AOR letters are issued by IRCC, some times the letters are not issued at all, so that is one thing I guess I will have to keep in mind. Thanks both of you for your advice.