The main question when buying YouTube channels has to do with the legality of this process. And, as you can guess, there's nothing illegal about it. As you can buy a company, property, or any other entity, you can also buy YouTube channels from people selling it. Websites like Lenos, Fameswap, and the others on the list are legal and can be easily located via a simple Google search. These websites didn’t have any legal issues, especially because they legally sell all of the channels. Not to mention open markets like PlayerUp, where you can personally sell your account to the highest bidder. As long as you stick with verified sites like the ones we talked about, you will not have any issues. Although, I'm sure there are many similar sites with a terrible reputation that you should avoid.