I recently bought a fiancé from the Dominican republic through a K1 Fiance Visa.

The police action is separate and distinct from your petition for your fiance. She can not adjust status in the US except via marriage to you. she...

Hi I submitted my I-751 along with I-912 form. Today it arrived in the mail with a denial.

You will need to take copies of what you submitted and all correspondence with USCIS to an experienced attorney to help you sort this out.

You might check with your school and see what their view is. If you were on H1B I'd say you need to apply for a second H. But OPT is part of the F1.

I-30 approval then rejection help!

The fact that the immigrant visa was approved doesn't mean that she is eligible at this time to come. Her ability to come is dependent on the visa...

Can we travel under esta to the usa for 2 weeks while waiting for L-1 visa

Yes you may, be prepared to answer questions related to change of status.

File transfer timing ?

Keep making infopass appointments, send a certified letter to the first office notifying them of the change. hire an attorney to look into it for you.

Do you need a job offer first in the usa before you can come over and try to work or just get a green card or work permit

You need to have a company sponsor them to get the work card. there is no ability to get a work card and then look for work.

You will need to get the degree analyzed- where is it from?

Do you need a job offer first in the usa before you can come over and try to work or just get a green card or work permit

They will need to have a company sponsor them. If they have a college degree and if they come over on a tourist visa and fins a company willing to...

How long should one stay of united states before re-entering again?

No, but the longer she stays out the better. You don't want USCIS /CBP to think she is actually living here.