The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ALPHABET INC CAP STK CL A 02079K305 11 10 SH   SOLE   10 0 0
ALPHABET INC CAP STK CL C 02079K107 11 10 SH   SOLE   10 0 0
AMAZON COM INC COM 023135106 14 8 SH   SOLE   8 0 0
APPLE INC COM 037833100 19,670 106,262 SH   SOLE   106,262 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 18,051 96,711 SH   SOLE   96,711 0 0
BLACKROCK INC COM 09247X101 22,377 44,840 SH   SOLE   44,840 0 0
CBRE GROUP INC CL A 12504L109 72 1,500 SH   SOLE   1,500 0 0
CECO ENVIRONMENTAL CORP COM 125141101 3,518 573,000 SH   SOLE   573,000 0 0
CHARTER COMMUNICATIONS INC N CL A 16119P108 18,284 62,357 SH   SOLE   62,357 0 0
COMCAST CORP NEW CL A 20030N101 21 630 SH   SOLE   630 0 0
FACEBOOK INC CL A 30303M102 97 500 SH   SOLE   500 0 0
FIRSTSERVICE CORP NEW SUB VTG SH 33767E103 3,000 39,440 SH   SOLE   39,440 0 0
GENPACT LIMITED SHS G3922B107 14,191 490,511 SH   SOLE   490,511 0 0
GOLDMAN SACHS GROUP INC COM 38141G104 44 200 SH   SOLE   200 0 0
HILTON GRAND VACATIONS INC COM 43283X105 10 300 SH   SOLE   300 0 0
HILTON WORLDWIDE HLDGS INC COM 43300A203 79 1,000 SH   SOLE   1,000 0 0
ISHARES TR INTRMD CR BD ETF 464288638 836 7,870 SH   SOLE   7,870 0 0
ISHARES INC MSCI ISRAEL ETF 464286632 48 925 SH   SOLE   925 0 0
MSCI INC COM 55354G100 26,710 161,453 SH   SOLE   161,453 0 0
PARK HOTELS RESORTS INC COM 700517105 20 648 SH   SOLE   648 0 0
SHERWIN WILLIAMS CO COM 824348106 23,981 58,837 SH   SOLE   58,837 0 0
SITEONE LANDSCAPE SUPPLY INC COM 82982L103 26,399 314,380 SH   SOLE   314,380 0 0
UNDER ARMOUR INC CL C 904311206 316 15,000 SH   SOLE   15,000 0 0
VISA INC COM CL A 92826C839 26,547 200,427 SH   SOLE   200,427 0 0
WELLS FARGO CO NEW COM 949746101 1,014 18,299 SH   SOLE   18,299 0 0