I welcome kind invitations and correspondence at misssarahchan[at]gmail[dot]com
If you have something you'd like to drop off in person or send via snail mail, my husband's office is likely the best choice since there is always somebody there during business hours:
Sarah Chan c/o Patricia Osadciw
Office of the Mayor
2nd Floor, City Hall
1 Sir Winston Churchill Square
If you would like to invite my husband to an event, this is where to go!