Not trying to be picky here but just how is it you "got" a felony for a crime you weren't involved in? A felony conviction is very serious, I can't see a prosecutor, judge or jury convicting you of a felony if you weren't involved.
I don't know how honest the OP is being about the charge, but a felony for an obstruction or something similar can be quite minor.
Essentially it can be something such as lying to investigators.
Lying can be as simple as claiming to know nothing about something you do know about in order to avoid being a witness against a family member.
It can also be something like removing evidence to keep a family member from getting convicted before they can serve a warrant or find it in a probation.parole or similar search. Know brother has something illegal? Get rid of it before the cops show up to keep him from getting in trouble and they can prove that? That can be a felony.
Destroy paper documents, delete computer files, or something similar to erase evidence of a crime like fraud or many other crimes commonly investigated by going through such records, it can be obstruction.
If a prosecutor feels they could have convicted that family member or friend, or convicted them of additional charges, had you not removed that evidence they may go after you for obstruction even though you were not involved in any of the crimes.
Know where your wanted family member is, and say you have not heard from them, yet phone records show they just talked to you recently? Felony.
Felonies are quite easy these days, they don't take much.
Think about felon Martha Stewart. She was found guilty of nothing except for lying to investigators, a felony. She was not found guilty of any of the original charges if I recall, but rather lying to the investigators that were investigating those charges.
You have the right to be silent, but not the right to tell a lie. (Sometimes they even try to remove the right to be silent, and force you to speak against others with some legal manipulation to get around the 5th Amendment.)
