There is no maximum number and any number of consecutive losses is possible. Take note that every time you wager, you play a new game which is independent from previous games and everything is possible.
If you are looking for a method to get rich, that's not possible. House will defeat you in the long run.
Do you think 60 loss or more is possible with 5x profit set? I am not planing to get rich. I am planning to get 5$ a day maybe. If you are looking for a method to get rich, that's not possible. House will defeat you in the long run.