What if my joint sponsor (LPR) has only been living in the USA for less than a year, can that person still be my sponsor?

Yes

I agree. You cannot adjust status. You can still get your "green card" by consular processing. Consult with an immigration attorney.

The job should be related to your specialty (aka your degree).

180 day rule

I also agree with Ms. Gupta.

Immigration Service

I don't see a question.

COS to H4

Yes. You may work as long as you maintain H1B status.

Chance of husband to get B-1/B-2 US Visa? (If Wife got Multiple US B-1/B-2 Visa.)

Many nonimmigrant visa, the government examines the likeability of the person returning back to the home country. If your husband can prove this...

OPT extension denied. option 1: MTR option 2: Re-enter with new sevis option 3: can i do both (MTR and re-enter )

I agree with my colleague. You are out of status. When you received the rejection letter, did the USCIS rejection found you to be out of status?...

In 1997 President Clinton passed immigration reform. Was the ($1000.00) adjustment status penalty fee waived?

You must pay the $1000 penalty if you would like to adjust your status per 245(i).

When should I file for an I-601A waiver?

I agree with my colleagues. You should probably contact an immigration attorney because you are right. you need to file I-601A.