There is no way the guy can scam the OP since he is putting his own money on risk and isn't asking OP to put any of his money into the business. The thing is, the other guy might be transferring the money from an illegal source and doesn't want himself to get tracked for its usage and that is the reason why he offered a guy, completely inexperienced and never known to him, the job so that he gets the business going but no harm should come to him in case something goes wrong.
Actually it's definitely possible this could be a scam. Because before the guy actually deposits the funds, he might give instructions to have the OP make a small deposit to the wallet first saying he needs to confirm the OP is a real person. Or he could ask the OP to send some form of identify for verification so he can steal it and use it to commit a crime.
Is this a legit job offer? Is it even legal? I have no idea how this stuff works and I have been trying to research it all. I don't want to agree to something that will get either of us in trouble.
No, it doesn't sound legit at all especially if it's coming from complete stranger. Ask yourself, would you trust someone you don't know with all your own hard earned funds? This whole thing just sounds super shady don't fall into the trap.
