TPS out of status..

It may be possible but more details are needed. Before changing speak with an immigration attorney.

I got I797 & I-20. I plan to join Phd. Is my I797 still valid after I joined Phd on F1.

If you have obtained H1B status, it may be possible to utilize by filing fo change back to H1b from F status. Speak with an immigration attorney.

I am asylum seeker and now I am waiting for interview. I want to apply for advance parole document.

Asylum applicants are not eligible for advance parole.

Is my 2 years for my re entry permit counts for naturalization ?

Time spent outside the U.S. Does not count toward physical presence except in limited circumstances. Time outside the mat count toward residence...

If a US citizen sibling applies for a GC for me and years pass, he applied for our parents and then they apply for me...

The priority date for a sibling petition does not transfer

Residency proof for H4 to apply for TPS

Expiration of status is important and TPS eligibility. More information is needed.

I agree with my colleagues you may make the change.

I'm a US citizen and my mom is Mexican and dad is of Irish descent. Is it possible for me to hold dual or tri citizenship?

The U.S. Does not recognize dual citizenship, however, the U.S. Does require you to give up a second cr third ore more other citizen ships.

Tourist visa or K1 visa? Marry in US or DK?

You have the options of your choice, marriage now with adjustment,not appe,are to one of them

My husband entered The United States of America with a working visa which was only for six months wants to stay

Several more months. You can check case processing times and status on the U.S.CIS website.