Advice needed

There is a house pig that is need of a home. I am willing to take it but I need some advice first. The pig seemed really scared yesterday when I went to see it. I'm pretty sure I'm only the 3rd person it's seen all of its life. The old woman giving the pig away said her husband died and left the pig behind. It's 9 years old. When I went to see it's I noticed that's skin is all dried and cracked. And it's hoffs or claw are very long like they have never been clipped. It's been living in a very small apartment 2 room for 9 years with out a front yard. When I asked the lady if it's ever been walked she told me no.so I'm guessing it it's been trapped in there for 9 years. I have land and even a bore house so that's not the problem. I just want to know what I'm getting myself into.