I've got a friend wanting to trade his XB1 for a PS4 (talked him into it woot to me).

Anyways, he found one on CraigsList a guy is wanting to trade his PS4 for a One, perfect.

The guy has CoD Ghosts, BF4, and FIFA but they are digital copies.

Would it even be possible to get the games to work if my friend bought it? The guy wants to wipe the PS4 before he sells it so there wouldn't be any access to his account to redownload them right? He'd need to leave the games installed and just delete his account?

Anyone know how to keep the games on the PS4 installed but delete the main account they're tied to? Or if it's even possible without buying them all over again.