How to adjust front doors

I have a 2001 Montana and both front doors are sagging. When closing the doors they are slightly lower than the loop on the frame. How do I raise the latch end of the door up so it won't hit when closing?

I have a 2001 Montana and both front doors are sagging. When closing the doors they are slightly lower than the loop on the frame. How do I raise the latch end of the door up so it won't hit when closing?
Is it the whole door sagging, or is just the latch off? Also, how much off is it?

I will check to see if the door is off or latch is out of alignment.

I checked doors and they are properly aligned when the doors are closed. When shutting the door, it seems to be about 1/16th inch low when it hits the ring on the frame. Can I adjust the ring on the frame?

I checked doors and they are properly aligned when the doors are closed. When shutting the door, it seems to be about 1/16th inch low when it hits the ring on the frame. Can I adjust the ring on the frame?
I am not able to look at my Montana right now, but I think the ring is secured with a couple of bolts (maybe torx screws) that can be loosened enough to move it around. I think I would mark its location with a marker and then loosen the bolts just enough to move it a little and re-tighten. I would be worried about loosening too much and having things fall off inside, if they can. If this does not work and the ring does not seem to move, I would tap it with a hammer slightly in the correct direction.