can you expunge a mistamionor after 7 years and if so how much does it cost

There is no time limitation on when you can expunge a criminal charge, but if you were convicted of the crime the answer is that you can NEVER expunge it.  It will stay on your record forever.  Expungements are only granted in cases of actual innocence, as when the charges are dropped or you are acquitted of the charges after a trial.  If you are found guilty or you plead guilty, you are not considered innocent and the charges cannot be expunged.  The purpose of the expungement is to clear the arrest records and charges off the record of innocent people. This answer is given in accordance with the laws of Virginia and may not be applicable in any other state.  It should not be construed as legal advice, as that would require a more thorough analysis of all of the facts involved in a specific case.  If you need further information or assistance, please feel free to contact my office for a consultation. Case results depend upon a variety of factors unique to each case. Case results do not guarantee or predict a similar result in any future case.