Answers

Consider, a new dog

You can put a small tack on the top of the door and hang a piece of fishing line down from that to attach the wreath to. Make sure the tack does not stick up high enough to hit the top jamb of the door. We use this method to hang wreaths on the front doors of our model homes. It does not leave any kind of mark when we remove the wreath. 

Hello Pamela, 

We at NEWPRO suggest you have a professional examine your doors. Not only do these gaps create energy loss from within your home, but also pose a security issue. Without actually inspecting your doors, it would be difficult to pinpoint the precise cause. Circumstances we have run into that sound similar to yours have been caused by the door being warped, the jamb being bowed, or simply that the hinges have become loose or sagged.

I hope this helps!

~ Michelle Slowe

    NEWPRO

The fact that you can lift the door to get it to latch tells me that it is likely the installer did not install long screws through the top hinge into the 2" x 4" or 2" x 6" that creates your opening in your wall. Often installer rely on nails to support the weight of the door, but nails will allow the door to sag over a period of time. Verify that there is at least one, but preferabbly two long (2" at least) screws through the top hinge. If not, you can use a cordless drill driver to run the screws in. This usually easily draws the door back up to where it belongs. This is rarely caused by a foundation issue, or cause for a new door.