usage of that that in "I wanted to ask what is that you would require from me?"

Question

I have a sentence where it feels like it would be necessary to use the double that:

e.g. "I wanted to ask what is that you would require from me?"

Is my intuition correct? If yes, please explain why and dissect the sentence.

Answer 1

Yes, this sentence is incorrect.

While a "that" would make sense in this sentence, it is more common to use "it":

I wanted to ask what it is that you would require from me?

---

This can also take a different form:

I wanted to ask: what is it that you would require from me?

---

@SovereignSun also pointed out that you can use the word "there":

I wanted to ask: What is there that you would require from me?

---

"that" is also correct, but less common in useage:

I wanted to ask: what is that that you would require from me?