Depends on what the tickets are. If they are misdemeanors it would be a long time in jail such as a month/months to a year or two. His license might get suspended for just as long. In some states if a person acquires too many misdemeanors it is just as bad as a felony or a couple of felonies and felonies usually carry a sentence of multiple years. Less of a sentence might be imposed if the tickets are minor traffic violations, such as: speeding(non-reckless), not using a turning signal, or disobeying a traffic sign. It also depends on when the tickets were issued, if it happened all at once or if they were spread out over a period. The only way you will really know is when the judge decides the punishment. The judge could decide to be anything, depending on the situation, between being very lenient and giving him the minimum punishment to giving him the maximum punishment.