Is it normal to take 3 months the result of interview based on marriage?

No this is not normal but does happen on occasion. Schedule an InfoPass. Use the USIS website to do the scheduling.

I forgot to attach my denial letter to my new i-765 form.

They could deny it again because of the missing letter. Thy can also send a request for additional documents.

How long is Texas location for fiance visas approximately taking to make a final decision?

The processing can take an average of six months or more. It has only been four months since you filed the petition. They can deny the petition...

Your B-2 should still be valid. You should consult with an experienced immigration attorney to discuss your matter in person.

My wife file green card for two spouse already can she still file for me

Yes she can still file for you. However, there can be issues and USCIS will look closely at her past history of sponsoring prior spouses. Discuss...

Green card holder referred to secondary inspection when entering the U.S.

Yes you can resolve the issue by becoming a US citizen.

Immediately after I485 approval, will title change from Software development Manager to Software development Director be issue?

No this will not be an issue at any further point.

Is it possible to change from B2 when there is H2b employer who is willing to hire me?

Yes it is possible but you should consult with an experienced immigration attorney to discuss your matter in person.

How to get form I918 supplement B signed?

You should consult with an experienced immigration attorney to discuss your matter in person.

Can I use a photo of my "lost" passport as proof of citizenship for a replacement?

Yes you an try using the photo of your documents to apply for a new passport. You can also request replacements. You can also consult with an...