By all means investigate with your own due diligence using reputable lawyers, if you think its worth the cost (think of it like a casino - what do you assess is

By all means investigate with your own due diligence using reputable lawyers, if you think its worth the cost (think of it like a casino - what do you assess is the probability of getting $1M - is there even likely to be $1M lying around that you forgot about)? But DO NOT for any reason contact this company that cold emailed you because I'd put it at 99.99% probability that it's a scam. It's the same scam format as the classic 419 scam. But you kind of know this already, because you asked on HN!