How long is a Power of Attorney valid for?

It depends on whether it is an “enduring” Power of Attorney. An enduring Power of Attorney endures beyond the donor’s ability to continue giving instructions to the Attorney they have appointed. If the Power of Attorney is not enduring, the Attorney’s ability to act stops when the donor (the “adult”) is no longer capable. Most people will have an enduring Power of Attorney made as the intention is that it is to be used if they are not capable. Further, under the Land Title Act, a Power of Attorney is only valid for 3 years from the time it is signed, unless it is an enduring Power of Attorney.