How can an EB-5 conditional green card holder sponsor their spouse after getting married?

You may petition your spouse in the FB-2a category. If married, you may need to also file a separate I-829 if you did not already.

You always have the right to sponsor your spouse as a green card holder - there is no visa waiting list for this category. Waiting until you have your permanent green card does have some merit as it would ensure your spouse receives a permanent green card, however, you can update the I-130/I-485 filing while it is pending to provide evidence of the approved I-829 and request that USCIS issue your spouse a permanent green card given the change in circumstances.

Yes, you can file I-130 and I-485 (provided he is current on the visa bulletin based on his country of birth) for your spouse. You will have to prove your bona fide marriage. The only difference is that they will probably wait until your I-829 is approved to approve the I-485.

You can sponsor him now - need to move fast because F-2A spousal category may backlog soon.

If your spouse is inside the U.S., you can petition him with the I-130/I-485. This would be under the F-2A category. Your conditional status and the fact that you are not the primary petitioner will not affect your ability to petition your husband. However, if your I-829 is denied, the I-130 would be denied or revoked.

Conditional residents can sponsor their spouses. For all other questions, please consult with your lawyer.

They should file an I-130 for spouse. Much depends on timing. If the spouse can be adjusted during the conditional period, all the better. Problems could arise if your I-829 is denied and spouse is not adjusted. I would file under these circumstances.