A lockdown complicates the timing but does not necessarily block the process entirely. Legal documents like power of attorney are treated differently from standard privileges, and facilities generally have procedures in place to handle them even during restricted periods.
The first step is to contact his counselor or case manager directly. Explain that you have a legal document requiring his signature and ask what the procedure is for getting it handled. This is not an unusual request and facility staff deal with it regularly. They will tell you whether the lockdown affects access to the notary or whether legal document signing can still be arranged through administrative channels during the restriction.
Once normal access resumes, the process is straightforward. You mail the power of attorney document to him, he requests a notary appointment through the facility's main office or administrative staff, gets the document signed and notarized, and mails it back. The whole process from mailing to receiving the completed document typically takes about two weeks under normal circumstances.
The lockdown may add some delay to that timeline, depending on how long it lasts and whether it affects mail processing. Sending the document now through certified mail or InmateAid means it is already in transit and waiting for him when access opens back up, which minimizes the overall delay.
Legal matters have a way of being time sensitive, so getting the document moving now while simultaneously reaching out to his counselor is the right approach. Do both at the same time rather than waiting for one to resolve before starting the other.