Edit: Please take a look at my comment below before downvoting?
Edit: Please take a look at my comment below before downvoting?
"I of course still needed to have a lawyer review the terms, even if they were DJI’s final offer. In the days following no less than 4 lawyers told me in various ways that the agreement was not only extremely risky, but was likely crafted in bad faith to silence anyone that signed it." Page 17
Edit: I'm getting downvotes on my comment above, and maybe it's because I missed the part where he said he consulted a lawyer, but I have a suspicion that it's because I suggested the threat of a lawsuit. I know we live (in the US) in a overly litigious society, but my point is that the company is (perhaps through disorganization or communication problems) trying to alter the terms of an existing agreement. This is what contract and tort law is for. Sometimes the threat of getting the courts involved can cause the other side to see more clearly what is going on.
Leaving the researcher with a pile of security research that is ostensibly worth at least $30000 to somebody, no contractual obligations to anybody, and a possible "unclean hands" defense to any action DJI may subsequently bring against him.
If I were employed by any intelligence TLA or drone/UAV manufacturer, I'd already be at their door with warm smile and a briefcase full of cash.
After all, no-one rushes out to hire four separate lawyers to examine a contract. And if you paid for one lawyer to fully investigate the situation, why would you then seek out three other lawyers afterwards? If you decided that the lawyer you hired was crap and their opinion worthless, you might hire another one. But their opinion was the same as the first lawyer, so by this point you'd be insane to hire any more lawyers.
So it's much more likely that he informally asked some friends and contacts. While these people may well have been lawyers, they probably were just offering a quick, rough opinion on the matter. If a lawyer was actually hired, they would spend some time fully understanding the situation, and the next step to take would then be acting on their advice, not seeking out further legal advice to muddy the waters.
Considering DJI's position at that point was "this is a final offer" how useful would it be to shell out a considerable amount of money for a more thorough review?