i think it is possible. although i have never tested this but i believe that with a strategy like martingale if you start from a very small bet size and have a very huge bankroll you can win and beat the house.
nah it's not possible even with martingale , history has proved that there is no way to beat the house edge unless you do what hufflepuff did
there will be a streak that will eat the whole bankroll with the profit , ( whatever your bankroll and the max win are , there is a point that you will bust martingaling )