It depends. In some counties you can request an expedited hearing if there are extenuating circumstances or there is an agreement as to the...

Officer cant make court date, do i have to postpone? only day i can get off work. and what happens if i dont agree postponemen

You don't have to agree. But if the officer has a legitimate reason why he cannot make court, the judge is likely to continue the matter over your...

If police officer asks you to step off your porch and out side your gated fenced yard to talk to them . Is this failure to obey?

Would need more facts to give a complete answer. You may want to meet/speak with an attorney in your area.

Would i be able to get my record expunged?

Any charge that you plead guilty to (except for summary offenses) cannot be expunged in Pennsylvania. Your only option would be a governor's pardon.