There's always a problem, post-crash, with lawsuits. Part of this is the fact that cases usually go before a jury of non-specialists who may be told stuff that makes any pilot worth his salt roll his eyes, because the jury often buys nonsense.
I particularly remember a case where a light aircraft pilot made what looked like a typical undershoot with CFIT, followed by a post-crash fire. His family found a shyster who put it about that, no, the aircraft had caught fire on short final, that that was the cause of the crash! Of course the aircraft wreckage had been destroyed by fire, so that it was impossible to say that this very unlikely scenario had not played out, and then there was the bereaved family up against the big, rich, aircraft manufacturer, when the jury came down on the side of the family.
I think the judgment was reversed on appeal, but those initial, multi-million dollar settlements often lead to no win-no pay lawsuits by people who really don't have a leg to stand on. Everyone from the company that built the crash aircraft down to the guy who last serviced its toilet end up having to fight off the sharks.