Once you have already been convicted of a crime, it might be a challenge to reduce this sentence and make it so that you will not have to serve the complete sentence. Luckily, an appeal can be very helpful to you especially if you were somehow wronged by the court or if you have had an ineffective counsel when you were previously sentenced. This can help cut years off of your sentence.
In one of the cases that the NLPA recently worked on, the NLPA recommended that the counsel ask for the sentence to be vacated due to a violation of due process. In this case, the sentence was eventually reduced by 20 years. Similar cases to this one can result in significant changes in a sentence and early release from federal prison for some individuals.