So I am guessing that Jasep's brother opened these bar/restaurants and tasked Jasep to manage them, and he failed with each one of them.

I doubt Jasep "owned" any of them.

Restaurants and bars have relatively high startup costs, mostly due to the equipment and supplies you have to purchase, along with any construction costs. (There are referred to as "build out" costs.)

I doubt Jasep ever had that type of money to even invest something like 10-20%. Obviously he did not have the credit history or collateral to obtain a loan, either.

There's a good chance he agreed to manage these restaurants in return for some share of the profits (maybe that's where the 20% came from). This way his brother would only need to put up money, but not do any of the work. This is a good deal for everyone if the family member is competent and trustworthy, but not if it's someone like Jasep.

All of this is just speculation, but the real take-away here is that it is highly unlikely he ever "owned" a restaurant.

At best he was gifted an ownership in exchange for running day-to-day operations, and failed badly.