I-130 approved but I-485 pending decision?

That may be a possibility. Have you discussed with your attorney?

Can I file form I 485?

Possibly, depends on many circumstances but the I-485 should have been filed once you reach the priority date. You should speak with a competent...

You can invite but technically cannot sponsor like you can sponsor a relative for residency. The state department looks at many factors before...

Can i fix my moms paper if i am a US citizen but i currently live in mexico?

Not exactly, you need a US address to file the papers. You will need a cosponsor to meet the finacial requirements at the end.

I have N400 citizenship interview on Feb. 15 in my old address in Hawaai ,. Can I go on to that appointment .

If you moved you were required to notify uscis within a certain time. The Hawaii office no longer has jurisadiction over your case so change your...

Can I join the army without papers?

No must be a permanent resident currently.

I sponsored someone i was married to about 20 years ago ... He went back to Mexico lost his status

Doesnt sound like a problem as long as you meet all of the requirements.

Can I ?

No, there are no divorces in the Philippines. Only annulments which can take several years. You need a filipino lawyer for the annulment.

What can I do if it’s already 6 month after my i485 interview and there is a delay because of background check ?

You can an action in federal court to compel a decision. That is your only option other than waiting

Can I reapply immigration papers again after so many years.i was petitioned by my husband for permanent resident .

Yes you can reapply in general but seek competent help as there could be somne issues.