The commenters who are arguing that cities can give the illegal immigrants very little are not accurate in the case of Ontario.  Public housing is owned and operated by municipalities who decide who is allocated accommodation.  Health care can also be made available by cities in Ontario.  Here in Ottawa, the city and the province fund community health care clinics which in turn seem to be able to provide health care to whomever they want. Have a look at a recent press release from one of the clinics on the topic of free translation services for refugees:
http://www.swchc.on.ca/news-events/news/ottawa-language-access-free-interpretation-services-healthcare-providers

As for access to free public education, that might also be possible since I have never heard of schools asking for citizenship or immigration documents at the time of student enrollment.