Some background info :
My wife is currently caring for her friend's sick husband who is on rapidly declining health. The friend has moved to a condo with firearms storage restrictions. She is selling her house and needs to store her husband's firearms. Her husband has an FFL. She does have power of attorney. I think she is going to ask me to store the firearms for her.

Question :
Is it legal in PA to store someone else's guns for them? I am legally allowed to own guns and have had a CCL since 1996. I do not know how many or what types of firearms will be involved.