Help....what do I do?

My attorney employer has about one dozen "Box Office Production/JJA" LPs in his vast collection. He has asked me to help him find a home for them. I am unable to find any info in the usual places. All roads led to castalbum.

How to proceed? He is interested in selling them.

P.S. All vinyl in original wrapping and in virtually virgin shape, album covers have minimal scruff wear at corners.