My lower face (jaw and chin) seem crooked. Is there any procedure that can be done? (photos)

Only you can make the determination if these procedures are beneficial for you. You should have computer imaging done before these procedures to help you make the determination if they are worth it for you. It is unclear in your question what procedures constitute 'Maxillofacial'.  I am...

 The photograph demonstrates fatty deposits in the neck, a poor jaw/ neck angle, and a weak chin profile. A small Silastic chin implant can be inserted on the front of the chin to give added projection to help with the jawline. There are 2 locations of fat in the neck, above and below the ...

Yes, feasible, especially if you have a Class I occlusion. You are correct in the use of some material on the 'ledge' IF the tissue 'thickness' is minimal; in order to avoid a deepened labiomental fold

I would start with a consultation and take xrays. Usually mandibular advancement and chin surgery is all you need to take care of this issue.

Your intuition is correct, you need both bone and soft tissue reduction. This can be ideally done from a submental approach where both excessive tissues can be removed.

 thank you for your question. I would seek a consultation with a board certified oral and maxillofacial surgeon. Based on your profile image, the issue is as much with the position of your jaws as it is your chin.   A surgeon can only make a chin look so large. Giving you an over-sized...