Comparison As

[FI143]

Which sentence is correct?

As my brother does, I have a baseball card.
As my brother has, I have a baseball card.

[RonPurewal]

Which sentence is correct?

As my brother does, I have a baseball card.
As my brother has, I have a baseball card.

in good writing, that kind of construction will come after the main sentence, not before it.

before the main sentence, you'll see "like": Like my brother, I have xxxx.

if you put that construction after the main sentence, use "does" (I have xxxx, as does my brother / as my brother does). ("has" is not a helping verb here, so it doesn't work.)