I got a new account and want to receive items from my friend but I don't have any games. Is it possible to receive and sell items from, for example, CS:GO if I don't have CS:GO?
You can trade and sell items for games you do not own.
* Provided your account is in good standing and not restricted from the Steam Marketplace
Just put 5 bucks on the account and restrictions will be lifted. You will now be able to use the marketplace.