No, an LPA cannot be used just because all relevant parties have signed it.
The LPA must also be registered with the Office of the Public Guardian before it takes effect.
While registration is not required to be done immediately, it is important to keep in mind that the registration process with the Office of the Public Guardian can take up to two months to complete. It is therefore advisable to plan ahead and allow sufficient time for the registration to be completed before the LPA is needed.
Only once the LPA has been registered can the attorney named in the LPA make decisions on behalf of the person who created the LPA.