I just received a few tasks on res.net that want me to confirm winterization for a few of my fannie mae listings.I read the form, and they want me to sign it saying I certify that the winterization done by Safeguard or Field asset services was done satisfactorily.How do I know they did a satisfactory job? How am I supposed to know if they actually blew the lines ou t, or poured anti-freeze into the drain traps? How could I possibly sign this in good ethical conscience?It's as if they want to hold me responsible in the event anything goes wrong. I'm a Realtor, not a contractor. I'm stumped on how to handle this.