Hello and thank you for allowing me to address your legal question.
If you, or the person you bought the land from, has been using that 8 foot strip as your own for the last 50 years, then there is a good chance you can claim ownership by adverse possession.
What state are you in, and who did the third party buy the quitclaim deed from?
Thank you.
DISCLAIMER: My post is intended as general information only, and should neither be construed as specific legal advice, nor as an adequate substitute for the retention of legal counsel.