Construction Lien Act-Date of last supply of services and materials-Consultant:  The supplier returned to site to install materials due to error in instructions from owner.  The time for filing lien ran from the date of that attendance. Certificate of completion issued by the owner, instead of a consultant, was ineffective to cut off the date of last supply of services and materials: 570 South Service Road Inc. v. Lawrence-Paine & Associates Limited, 2010 ONSC 6978. See CBC, Chapter 8, part 2(b)