No weep holes?

My house is only a couple of yrs old and it appears my front door is shifting. When I close and lock the door, I have to lift it by the handle so that the dead bolt will slide out and lock the door. Is it just a matter of adjusting the scews in the doorjamb or do I have to make the lock hole larger? This has been going on for a while now, but it has gotten worse lately. I have actually had to replace the dead bolt because of the strain that has been placed on it, the mechanism popped out of the lock itself. Temperature and humidity also seem to be a factor in the fit of the door. Any advice will be appreciated.

I am in the process of buying a 30+ year old home that I will be using as a rental property. The only info I have right now is that it was made by the Vagabond Corp in New Hudson, Michigan. I am adept at home improvement, but this is foreign to me. I ripped up the carpet in the living room yesterday, to be replaced by laminate. I discovered there was mold around the outside walls(baseboards)and the outside edges of the carpet were wet. The windows are the jalousie? style. It appears it has been this way for a while. I am assuming that the windows leak, and the moisture is running on the INSIDE of the walls, the insulation is wet, can't dry out, and water is sitting at the floor line. Which I find hard to believe given that we have had a drought this past year, although as I said, it appears to have been there a while. Question - on this old of a home, is the framing steel or wood? I have a bad feeling that I need to tear out the paneling, let it dry, and replace the insulation. Can the leaky windows be fixed with caulk? I appreciate any info. Thank you in advance.