You stated your visa PD is current. You may file I485 and supporting documents. Your 797 will follow acknowledging receipt.

It appears taxes are not an issue. If it is, you should have heard from USCIS. Good luck.

It is not a must you submit photos. Photos and items on the list are suggestions. Feel free to come up with your own ideas. No one knows your...

It is best to consult a qualified immigration attorney to review your application file before submission to USCIS. Good luck.

After the marriage you may apply for a GC. Besides marriage, there are other requirments. It is best to speak to a qualified immigration lawyer for...

The nature of the relationship suggests some flexibility. Nevertheless, to avoid unnecessary delays, the 90 days rule is recommended.

I recommend you retain an experienced immigration attorney to review your specific situation. Then discuss viable waivers and appropriate one, if...

Depends on your local USCIS scheduling team. Only I751 may be scheduled or both I751 and N400 will be scheduled concurrently. The I751 must be...

Additional information and background are needed to understand your question. Good luck to you.

If you fail to appear for a scheduled interview, did not inform USCIS of why you will not appear, case will be denied for no show.