Hey buddy, I happened to run into Isabella at the beach on Thursday, but I didn’t go to the office to talk to Josef. Now I can’t find the conversation where Josef mentioned Isabella. Is there any way to make that event happen? Otherwise, I won’t be able to find Isabella at the mall
I believe you accidentally softlocked the event by not going the Office straight away. If I'm not mistaken, there was somebody asking why he didn't get to unlock Mario's Questline in the game and that was because he didn't go to the Garage right after Josef gave the Car Key and he already paid the debt little by little.