Garber was in town Wednesday for the MLS Commercial Summit, which involved the league's three Canadian teams, broadcast partners and staff.
"We're hopeful to be able to announce a 20th team within the next four to six weeks," Garner told reporters at halftime of the Amway Canadian Championship game between Toronto and Montreal. "So the timing has accelerated a little bit."
Garber did not elaborate but a second team in the New York area has been a priority. Orlando has also announced plans to build a stadium.