No problem. If it were me, I'd give the tickets away to someone who would really appreciate them. They could make two people very happy who otherwise might not have been able to attend, will make you feel good to bless somebody, and you won't have to worry about how your gonna sell them and how much you can get for them.
You could even invite a couple of friends along for a nice evening with dinner followed with a great concert. I've done this on more than one occasion and made some memories that will last a lifetime, way above and far beyond the measly price that Lightfoot tickets fetch. Plus, a couple new Lightfoot fans were created in the process.
Good luck.