Use the standard rental agreement and add some extras to the appendix. www.forms.ssb.gov.on.ca/mbs/ssb/forms/ssbforms.nsf/FormDetail?OpenForm&ACT=RDR&TAB=PROFILE&SRCH&ENV=WWE&TIT=2229E&NO=047-2229E Does this mean that the lease with Form 400 is no longer required? Or are both necessary? Having both seems superfluous to me, so I wonder what the practice of the sector is today. Small owner here, who hasn`t needed to find a new tenant in recent years. .