Advice on buying a monetized YT channel

(elbowshake)

Any advices on buying monetized channels for Youtube? I already have one monetized account with my real info, and I'd need some info on what to look for when having multiple monetized accounts, let's say is it possible to link that new account that I would purchase, to my already existing Adsense account (where I have my 1st monetized YT account)

Also, I've read some people say it's illegal, it's against the terms of Youtube, some say it's not, etc.

I need more opinions. Any advice would come in handy, so please write few words.

You can link. It does not violate youtube rules.
But remember if one of your channels is dead, demonetized etc... it will effect other channels.

If you are going to buy a Monetized channel, high chance that you won't be getting the Adsense account, even if you get it, it might be not of your own Country.
So you will have to either create an Adsense or join it with the already avaialble Adsense, but one channel goes, all channels are at risk.
Buy fresh Monetized channels with less, videos, check CTR, source of Audience etc.
That will already give you a good Boost.