Thanks to Ron Sprouse for pointing out this awesome video by Serge Ramelli. Don't be intimidated by the fact it is 22 minutes long. It is well worth 22 minutes. Serge does a fantastic job of walking you through how he shoots and retouches a shot of a hotel room in Paris.
Note that the technique Serge is using is very specialized for shooting small hotel rooms where he has to shoot a single room and create a polished image to compete for the whole job so the amount of retouching is likely more than you will want to do for a large shoot. But the techniques with Lightroom and Photoshop are excellent. He goes through a bunch of useful techniques for making very polished interior images.
Be sure to help him out and click like.