Friend With Dementia Is Being Taken Advantage Of And Is Now Going To End Up Homeless (pa)

I'm not sure if I have the right flair here.

A friend of mine who has early onset dementia has been spending all his free time doing general labor for a property manager who hasn't been paying him at all. This guy has been promising my friend a large sum of money and a place to live rent free if he works for him and my friend keeps falling for it. My friend has now fallen way behind of rent and is getting evicted from his apartment. Is there anything legally that can be done about this property manager who is taken advantage of my friend? What he's doing almost feels like slavery and doesn't seem right at all.