Hi, I'm watching this video and there are some unclear words to me, I will let you know what are the unclear parts thanks... can you please explain "comes off" in other words? and also "hand out"? in this context?

At 1:20

There is a little porch that comes off of the living room if the tenant wants to hang out here


It means that you can go onto the porch directly from the living room, probably only from the living room if you are inside the house.

He says "if anybody wants to hang out out here." To hang out is to spend time relaxing and doing nothing in particular.