Excellent advice lawrat. When do you hear about the bar?
AG, in order to revoke your probation, the parole officer will have to note up a hearing in front of a judge. The judge can refuse to revoke probation. Prepare now for that hearing. Gather all your documentation of the comm. serv. hours you have worked, the hours you've worked at your job, and the hours you've spent taking care of your mother and brother. Don't whine and make excuses; just explain that your unique circumstances mean that you will need the entire year to perform you CS. If you don't have documentation, start trying to reconstruct it now. Organize this information into a nice, neat chart. (Judges have very little time and well-organized information is very persuasive.)
A friend of mine got dragged into court by a probation officer trying to revoke her probation. She defended by asking the judge to terminate her probation! She presented a chart that listed each requirement of her probation, and the date on which she completed each item. Then she told the judge that she could pay the court fine much faster if she didn't have to pay $30/month for supervision. The judge terminated her probation on the spot, leaving the probation officer standing in court with her jaw open.
In your case, you will also need to be able to show a reasonable plan for completing your hours before 6/22. Be sure to leave some extra time in case you hit some snags. The court gave you until 6/22 to finish the hours. If you can show that you'll have no trouble doing so, the court shouldn't revoke you. After all, if it does, the state will just have to pay $80/day to keep you in jail.
Good luck.
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This is not legal advice and you are not my client. Double check everything with your own attorney and your state's laws.