Is it possible to apply for a non-immigrant "Adjustment of Status" before the 6 months term of legal entrance expires?

Adjustment of status from B1/B2 is permitted however, adjustment of status process is ot easy, thus you need a detailed consultation.

Will my husband be eligible for the i601 waiver

detailed consultation is needed, unlawful reentry after deportation not waivable.

Can I get a green card through my non-american boyfriend (if we get married)?

I would suggest to have a detailed consultation with immigration attorney. Need more information as to what was filed and what is the basis?...

My wife and I are both US Citizens and want to petition her son and family in the Philippines to come stay with us here.

You need to provide more information about your spouse's son and what do you mean by family. Consult with immigration attorney with details.

Does expedited i-765 request actually slows down the application process?

Not sure that understood your question. What do you mean by expedited I-765?

Hi, I send a i485 application with fee waiver and was approved. There is some priority in the processing time?

No priority, adjudication depends on basis and jurisdiction.

Change of status from H1B to F2

you need a proof that your spouse has F1. Consider hiring immigration attorney.

What are the chances of getting a Visit Visa? Please Please Please Guide

I suggest to have a detailed consultation with immigration attorney, many factors should be evaluated.

your withdrawal would not be of help, consult with immigration attorney to discuss options.

OPT and Independent contractor

employer is considering on saving on taxes, offering 1099 for you, is not recommended option for you.