Can I travel to Canada to get H-1B stamp at US Embassy while my asylum is pending?

Your asylum application in the U.S. will be considered abandoned if you leave without Advance Parole. Please plan this out with your immigration...

What is the interview for?

I agree with the other attorneys here.

Is the case for you? Because you seem to be able to communicate in English. Anyhow, contact a few attorneys whom you think are qualified and see...

How can i get help to file my asylum case?

If you are asking help for filing an asylum application, then you need to do a full consultation with a qualified and experienced immigration...

Can my wife gain derivative asylum through me?

There is no derivative asylum if you are yourself a derivative, I"m assuming based on a parent's application. You can apply for adjustment of...

Do the 90 days restrictions to apply for renewable work permit still apply for someone that has been granted asylum ?

Apply 30 days before the expiration of the old EAD. I suggest having an EAD even if you don't need it because some employers will want to see it...

You can cancel the asylum application. You should make sure that you are in valid student status before you travel.

Can I get my wife to US in tourist or visitor visa and change the status later?

I cannot answer based on these facts as some information is missing. An employer usually doesn't give you H4 docs, you have to apply for your wife...

Does cspa retention of priority date applies to f4 category?

It depends on how old your daughter was when the petition was filed and if it was after enactment of CSPA because its not grandfathered. Consult...

Do I have to use a lawyer to begin paperwork for my husband, or is it possible to just go into the immigration field office?

You should obtain legal representation if you are confused about the process or what to do.