How long does it take to hear back from UCSIS after the biometrics was taken for citizenship application?

Usually 5-8 months, but can be longer or shorter.

Immigration Question: I have F-1 visa and currently attend a school in the U.S.If I marry my boyfriend can he apply for F-2 visa

He can apply, but check his eligibility. Hopefully he is in the U.S. in status or entering from abroad, and meets all the requirements.

When can we expect h1b premium processing to resume for FY 2018?

It will reopen as "workload permits." https://www.uscis.gov/news/uscis-resume-h-1b-premium-processing-certain-cap-exempt-petitions

Yes a green card holder can petition a spouse. She must remain in H-1b status until adjustment time.

Fiancé visa

Yes, but you will need a joint sponsor for the affidavit of support.

I am filing for us citizenship after being a lawful resident for 15 years. Do I have to submit my spousal documents?

The N-400 instructions have information about what documents are needed. Sounds like you are not applying based on your marriage, so bona fide...

H4 EAD approval pending?

Did your attorney inquire as to why it is taking so long? Was there a request for evidence issued?

USCIS didn't accept my income from my country and want the income to be from U.S and I am an international student, what to do?

You can can a green card holder or U.S. citizen to be a joint sponsor for the affidavit of support.

What is the procedure for marrying a US green card holder?

You can legally marry while on tourist visa. Filing a green card if you entered on tourist visa can be a problem due to intent. Consular processing...

Who can I minimize my asylum process period ?

The asylum process usually takes about 2 years, sometimes longer. Deoending on your emergency, you can request it expedited but it won't be much...