To start, as mentioned in the thread, these aren't really blackhat ads. We are using blackhat techniques to run multiple ads but the campaigns themselves are selling merchandise for a popular crypto platform. (All designs are done in house and no trademark/copyright is being infringed on)
Double serving on Google will not land you in legal trouble... Even if we were running ads infringing on trademark/copyright, Google would ban the account and that would be that.
banning from Google AdWords services is a sufficient reason to distance yourself from this offer. It's not worth $20.
maybe you could give a closer example here, which type of ad it is (I doubt that someone will steal such a risky idea from you) and it would remove doubts that there is no legal problem besides everything.
I have said my piece.
If I was running a business on google ads, then I would reach out to my friends and family & would rather pay them 20 USD daily for their account.
They would be happy to help expand my business and in return earn some passive income too.
Or I would set up an LLC in a different state under my name & ownership. There are many ways to do this.
But when a new account comes offering 20 USD via cryptocurrency to use their google account for running an ad, it sure as hell doesn't look good given how many scams run on google ads.
OP, himself wrote that there is a great risk to be sanctioned by Google because the whole business is against their TOS. I'd say he was just extenuating, I would say it is 100% certain that the ban will happen.