Quick … not picking on you, just using you post as a sample …
To everyone who keeps asking to see copies of the drawings, pictures of the construction … none of your business, stop asking. The OP has shown that he is consulting with competent and qualified people, he seems to have it under control.
Read the first post by the OP!
it is my business because he asked for advise and this is part of what I do professionally.
prior to any potential litigation a competent lawyer will want to throughly investigate the feasibility of the project and the construction documents to determine what went wrong.
design professionals rarely have to pay out any significant compensation on these types of claims unless there work was negligent, even grievous blunders yield very small awards.
taking a contractor to court over a garage being 1’ shorter than the plans would be a hard case to fight in court because unless the judge is a car guy he would probably not grasp the implications
taking the contractor to court because the patio is now several steps down when it was supposed to be at floor level would be an easier case
the reason this has over 200 posts is because of all the people that are talking about suing or going after a bond that probably does not exist.
the op has made it clear that he wants to get this finished and move forward
he does not want to start years of litigation and live with that
I have multiple court cases, that I am a designated expert witness on, that have gone on for more than 5 years and some have followed me from my previous company.