Adjustment of Status - I-485

Hi

I had my labor certificate approved in may and submitted I140 (premium) and I485 (concurrent) on October 19,2016

TEXAS Service Center. Application from Puerto Rico.

I-140
October 21, 2016 - Papers Received
November 4,2016 - Your case was approved. Few days later, the official communication arrived.

I-765 - Employment authorization
October 21,2016 - Papers received
January 25,2017 - New card is being produced
January 27,2017 - Card was mailed. Few days later, I received the card

I-131 - Advanced parole
October 21,2016 - Papers received
January 27,2017 - Case was approved (In the EA Card is registered that I can travel)

i-485 - Adjustment of Status
October 21,2016 - Fingerprint Fees Received
November 11th, 2016 - Fingerprints taken

Nothing else since . . .

I have a few questions:
- What are the next web site status after "Fingerprint fees received" if any, and usually how long those steps take?
- Considering that, based on processing times page, in Dec 31 the I485 of August 30 were processed (and that might means that the cases of October were processed in February), how much time usually pass between the processing time page reach your application date and the process is completed? I mean, the date in the processing time page (currently August 30) is the date they started to analyze those cases or finished those cases.? If it's the start, how long usually takes from that date.
- What is the role of the Field Office? Besides the service center, should I check the Puerto Rico Field Office dates? I'm doing an Employment based application so I think I don't need to be interviewed (at least my lawyer said that usually it's not necessary).

Thanks all...as all of you, I'm very anxious to finish this asap.

Carlos