Should a startup co-founder charge back a ~2k USD legal review fees to company?

I am in a situation where there is a legal case between (1) co-founder, (2) the startup and (3) VC investor and a legal document (let's call it "side letter") has been developed to settle the issue.

Now the (1) co-founder wants to have a private legal advice session that would cost around 2,000 USD to provide legal consultation on the "side letter" because (1) co-founder was not involved when the side letter was developed and only (2) the startup and (3) VC investor had access to a legal advisor to write the side letter.

Question: does the (1) co-founder have the right to conduct a private legal advice session on the side-letter and charge back the cost of around 2,000 USD back to the company? Any other feedback is welcomed.