Can you make a women’s bathroom ADA acceptable as to an ADA person calling it a ADA unisex bathroom and leaving the Men’s room as is? Both rooms are very small and I am trying to at least make one bathroom accessible?

If your local code allows for gender-neutral toilet rooms then by making BOTH toilet rooms gender neutral you need 50% of your toilet rooms to be accessible.  In the scenario you list with two toilet rooms, making them both gender neutral, only one would need to be accessible.