In order for me to properly assess what you have I will need to know the size and see images of the certificate, and the front, back (do not remove from frame) of painting along with a clear, in-focus close-up of the signature.
If you had already attached images to your initial posting, they are not showing for me here on my end.
Please send the photos at your convenience. There is not an extra charge to provide more pictures here.
James Verdugo is not known for abstract painting and auction sale record for James Verdugo paintings in the style he is known for is $650.
I am available to chat live tomorrow after 3pm. I can send an additional services offer.
I will send it now. ~Nora