Have you ever had to involve your states Contract License Board/Division due to a breaching their agreement or screwing you over in some way?
A year and a half ago  I got roofing work done with a 10 year warranty which states, if there are any leaks or issues with the roof, the company will come back and patch it up guaranteed, with a limit of $50,000 worth of labor and supplies.
Obviously Its written out elegantly in a 10 page document by our lawyer to protect us in every which way in case they try to wiggle out of the contract later. 

They did a bad job and we had leaks in the roof after 10 months or so. We pay them pretty well to swing by and do a quick analysis one time a month, every time they said it was perfect. The leak was only discovered after a wall inside partially collapsed. 

We then ran into this never ending loop of "we shouldn't have to wait for the interior of the building to be partially destroyed before you discover a problem and find the source of the leak"
And they would say "How are we supposed to find the leak if we don't see any evidence of a leak".

They ended up telling us the roof was actually perfectly fine and the job was done well, we've been through 5 detrimental leaks at this point. We had to put two buisnesses on hold for multiple days to do black mold remediation, it was a huge huge blow. They ghosted us for a whole month too. Their excuse for the leaks was something vague about "the density of the brick allows water through" and some other vague stuff.

We were in a position where we either hire another roofing company to help us give them an excuse to blame someone else and pivot liability 
We couldn't afford to let then keep pretending their isn't a problem with the roof, and we can't afford to hire a lawyer and begin a legal battle.

We ended up calling the registry of contractor and hiring a lawyer and hoping this could be resolved without court. Our lawyer told us almost every case he worked on, the odds of the registrar of contractors taking the side of the property owner is almost 0. Now, my lawyer took a look at the roof, and even with his limited knowledge he knew this was no way the registrar of contractors would let this fly.

We had a mutual agreement for another roofing company to inspect the work, they agreed that the registrar of contractors need to be involved immediately. 

Air pockets, holes, waterbubbles, and sealant was placed over the cables pinning them forever in place. A total fucking mess. They couldn't even put the sealant on under the cables.

The roofing company, the registrar, and our lawyer all met up and got on the roof to take a look at this once and for all. Needless to say, we all saw that the roof was clearly fucked.

The roofing company explained himself with "well they never asked us to come up here and fix any of these issues, we can't just come up her and start working when they don't ask."

God damn, asking you to fix the issues is step number two. Step number one is letting us know about all the issues when we tell you "there must be an issue with the roof" we can't ask you to fix problems with the roof that you say don't exist. Lmao.
[{"id": "fyfm73t", "text": "That is fucked. I\u2019ve had some bad experiences but that\u2019s out of control", "replies": [], "depth": 1}, {"id": "fyg9njp", "text": "Sucks, all you can do is keep moving forward. I am owed $40k from 3 delinquent residential tenants in 2020 and I doubt I'll recoup any of it.", "replies": [{"id": "fyz5wzw", "text": "Ding their credit, file suit. I\u2019m not letting anyone off the hook.", "replies": [{"id": "fyztsd1", "text": "Yeah I probably will.  Got 2 years to do it.", "replies": [], "depth": 3}], "depth": 2}], "depth": 1}, {"id": "fygpi5l", "text": "Damn, this is when you find a lawyer willing to take a case on contingency.", "replies": [], "depth": 1}, {"id": "fygsvx1", "text": "Is the warranty from the Manufacturer or from the contractor?  The contractor registry does not have a whole lot power except to suspend the license after you get a judgment against the contractor.  Usually happens if the contractor has gone bankrupt and can't make the payments on the judgement.  Your best bet would be to get a forensic architect that can help you make a claim against the contractor's liability insurance.  There are several steps needed to correctly document the process.  FYI, Usually the GL policy covers 10 yrs of completed operations.", "replies": [], "depth": 1}]