i have a felony conviction in georgia. my family recently moved to canada, but i was unable to enter the country

Georgia does have an expungment statute; however, generally, they are tough to get if they were not negotiated on the front end as part of the plea. Check out the GBI's website for more info:

http://gbi.georgia.gov/00/channel_modifieddate/0,2096,67862954_67866875,00.html

This post should not be considered nor relied upon as legal advice since it is only intended for general overview and informational purposes. Please consult with an attorney on your specific situation in order to determine an appropriate legal course of action.

For U.S. immigration purposes, expungements do not erase the consequences of a criminal conviction. Only vacating a conviction or obtaining an executive pardon can do that.

You should consult a Canadian immigration attorney to find out what other relief might be available. (that is, what other facts or factors Canadian law might consider.

I don't know if you consulted with an attorney, or were denied entry at the border, but It is likely you will get more reliable information from a Canadian attorney.