Only after Lincoln caved to their demands and only if the topic was of interest to them as well. Your insistence that it would have included payment of debt and for stolen property is not clear from the letter Davis sent. You can call that 'negotiations' if you want. It was more like a mockery of the word.
That was really a crock of rhetoric. You saw the word EQUITY and you know the meaning.
Enumerate the “demands”.
Lincoln had no intention of negotiating.
It was he who was making all the demands.