Yes, but since he's controlled by Paarthurnax, you'll have to wait for him to get on. You don't have to offer any specific items anymore either, any item works.

Wait, what is going on? What about Hermaus Mora? I don't understand!

Oh, cool. I gave him a black book

So he IS controlled by Paarthurnax. I thought so!

Yeah but how often will he be responsive

As often as Paarthurnax gets online.

Herma Mora or Hermaeus Mora?

Herma Mora is short for hermaeus mora