Transferring After Redshir

Yes.

We tend to use shorthand terms like "sit out", and that makes it difficult to recognize the actual rule.  The rule book phrase is roughly "must serve an academic year in residence at the new institution."

Of course MTH gave the correct answer much more succinctly!

Alternatives:

1) He could still transfer to a JC for one semester and play, then transfer to the D1 as you suggest.  This will maximize the choices of D1 schools....assuming he plays good at the JC.

2) Or, possbily transfer to a D1, and enroll at a nearby JC at the same time with enough units to play on the JC team.  This however might limit his choices of schools.

Without knowing who the player is, I would guess it would be difficult to transfer and play at another D1 school w/o proving yourself at the JC.  Most players would be looking at a longshot walkon by sitting out a year.