If I have my regular pick at 14 and a type D pick at 24 because of a pick not signing an offer last season, is it possible that either one or BOTH could evolve into 1st round Type D picks next season? resulting in three 1st rounders? I ask b/c I took over a team with non maxed draft vision and it would be a waste to use two 1st rounders without maxed vision. In a perfect world, I make two offers this season, both of which are declined and spill into next year with max draft vision, a regular 1st round pick and two type D1st round picks.

Is that possible ? Bueller ?

Yes

Is that right? I thought if your type d did not sign you did not get a second type D

It is right.
You don't get a type D for supplemental (type A or type B) but for a type D you do.

I noticed that I did not lose my Type D at 24th spot ( in preseason now ) after I took a type A FA. That's also news to me, if it sticks.