The consul will assess the extent of your ties to your home country as part of the decision.

How long does it usually take to get a citizenship interview after biometric in California, Oakland?

The interview should be within 3 months of the biometrics date and could be much sooner.

What do i do if i lost my I-589 application?

You could try and obtain a copy through the Freedom of Information Act.

Hi,i filed up agent choice latter and put my name on it. but I filed up affidavit of support with attorney and he put his name.

You should really consider hiring an attorney.

Do I need a immigrant attorney ?

Yes, it would probably be a good idea.

USCIS misspelled my name in the past. I did not amend my name through court. I now need to submit an I-90 to get my green card..

Your identity would have to be verified one way or the other. You cannot simply change your name on an I-90, absent a legal name change, e.g....

Immigration

This depends on how many other arrests and convictions you have.

H1-B to H4 to H1B

If your H-4 has been approved, then that should be your status if a subsequent change of status request is denied.

Is it mandatory to submit the I 94 cards attached to I 797 approval notice at port of exit ?

USCIS has a record of your extensions of status.

Priority date from previous employer will be current soon. Can I adjust my status with the current employer using that PD?

If you have a previously-approved I-140 petition, it is possible to recapture the priority date.\ on a subsequent I-140 Petition.