H-M

Filing fee check got cashed today.
Also, I was able to add the receipt# to my USCIS account (myaccount.uscis.dhs.gov). It shows the status as:
"We received your case. You do not need to do anything at this time. We will let you know if we need anything else from you as we continue to review your case."
 
Finally relieved that case was filed successfully. And now the long wait begins....
Current USCIS processing time for I-751 at Nebraska Service Center: 16.5 - 23.5 months !!!!!!!!!!!!!

Filing fee check got cashed today.
Also, I was able to add the receipt# to my USCIS account (myaccount.uscis.dhs.gov). It shows the status as:
"We received your case. You do not need to do anything at this time. We will let you know if we need anything else from you as we continue to review your case."
 
Finally relieved that case was filed successfully. And now the long wait begins....
Current USCIS processing time for I-751 at Nebraska Service Center: 16.5 - 23.5 months !!!!!!!!!!!!!

I'm glad i included the G-1145 E-notification , i just got the text with case number and note to wait the I-797 in mail..
case start with MSC19XXXXXXXX , my guess MSC is national benefit center? i dont see even processing time for that center
odd thing our check still not chased yet or maybe our bank slow processing it.

It was delivered to the Dallas, TX Lockbox via USPS.
See my signature for detailed timeline

Got a text message this evening from USCIS stating "Your case was received" and receipt# starting with LIN
Check still not cashed yet.

UPS to Arizona

My ROC package was also delivered on Jan 9. So far no e-notification(text/email) or cashed check. I think 1 week is an average time before any update.
How did you send your package (USPS/Fedex/UPS) ?

If you don't get the extension letter in time, you can also use an unrestricted Social Security Card + Driver License to complete the I-9 form/e-verify requirements.

Short answer to your question: Joint insurance is any policy that covers you and your spouse as the insured (may also be referred as covered members) under the same policy.
 
Long answer: If you had your company provided health, dental and vision insurance that covered both you and your spouse, this would be considered as a joint insurance. Typically you can go to the online portal for the insurance provider or call them, to get a proof of coverage document that will list all the covered persons (you and your spouse).
Another example for joint insurance would be Auto & Renter's/homeowner's insurances that would list both you and your spouse as the insured/covered persons under the same policy. You can show insurance id cards or insurance declaration pages listing both names.
 
Beneficiary is someone who receives the insurance proceeds upon the death of the insured person. This usually applicable to Life insurances, 401(k) plans, savings account. So for example, your life insurance policy would only cover you and your spouse would be the beneficiary in case somethings happens to you. Same for your 401k account which would be under your name and would list your spouse as the beneficiary. For this, you can show the beneficiary page for your life insurance policy/401k plan listing your spouse as the sole (100%) beneficiary.
Also, if your spouse has life insurance/401k plan, her policy beneficiaries should show your name. (Looks like this is not an option for OP)
 
Hope this helps!

Here are a few pictures of our final package. We 2-hole punched the top, used printable sticky tabs and one ACCO fastener (3.5 inch capacity) to hold the entire package.
 
https://www.amazon.com/dp/B00006IBYX/ref=cm_sw_em_r_mt_dp_U_nrunCb7300SBT
https://www.amazon.com/dp/B001GXDWQ4/ref=cm_sw_em_r_mt_dp_U_YrunCbHG56MQJ
 

Our 90-day window opened on Jan 6, and we send our package on Jan 7 via USPS Priority Mail.
 
Overall 530 pages including the cover letter, forms & the supporting evidence. Here is how we organized our package:
Check for the amount of $680 for I-751 filing & biometrics fees Cover Letter Form G-1145 Form I-751, jointly signed by <husband> & <wife> Supporting Evidence: Index of Exhibits Exhibit 1: Copy of front and back of Permanent Resident Card (I-551) Exhibits 2 – 12: Evidence of Bona fide Marital Relationship showing co-mingling of our personal & financial lives since marriage <date>.  
Index of Exhibits
 
Exhibit 1
·         Copy of front & back of Permanent Resident Card (I-551) for <husband>
 
Exhibit 2
·         Copy of marriage certificate between <husband> & <wife>, showing marriage on <date> in <city, state>
 
Exhibit 3
·         Copies of jointly filed IRS Federal Tax Transcripts for Tax Years: 2017, 2016 & 2015
·         Copy of jointly filed Kentucky Tax Return for Tax Year 2017
·         Copy of refund check for 2017 joint Kentucky tax return addressed to <husband> & <wife>
 
Exhibit 4
·         Lease agreements for our current joint residence at <address>, showing joint tenancy
o   Lease Renewal Agreement for period: <dates>
o   Initial Lease Agreement for period: <dates>
·         Lease agreements for our previous joint residence at <address> showing joint tenancy
o   Initial Lease Agreement for period: <dates>
o   Lease Renewal Agreement on month-to-month basis until <dates>
·         Copies of current Kentucky driver’s license for <husband> & <wife> showing common residence at <address>
·         Copies of previous Texas driver’s license for <husband> & <wife> showing common residence at <address>
·         Copies of rent payment checks for <address> residence paid from joint checking account for period: <dates>
 
Exhibit 5
·         Joint renters insurance policy documents for current residence at <address>
o   Policy renewal period: <dates> (Currently active)
o   Initial policy period: <dates>
·         Joint renters insurance policy documents for previous residence at <address>
o   Policy renewal period: <dates> 
o   Initial policy period: <dates>
 
Exhibit 6
·         Copy of  Kentucky vehicle title showing joint ownership of  <Car>
·         Geico policy documents for current residence at <address> from <dates> showing joint auto insurance policy (Currently active)
·         Geico & State Farm policy documents for previous residence at <address> from <dates> showing joint auto insurance policy
 
Exhibit 7
·         <husband>’s employer benefits confirmation letter showing joint health, dental, vision & life insurance coverage for 2019
·         <husband>’s employer provided Life Insurance and Accidental death & dismemberment plan beneficiaries showing <wife> (Spouse) as beneficiary
·         <husband>’s 401(k) Savings plan beneficiaries showing <wife> (Spouse) as beneficiary
·         Anthem BlueCross BlueShield Medical Insurance ID Cards for 2019 showing joint health coverage
·         United Healthcare proof of insurance for joint health coverage from Feb 2017 – Dec 2018
·         IRS Form 1095-C for Tax Year 2017 showing employer-provided joint health coverage
·         IRS Form 1095-B for Tax Year 2016 showing employer-provided joint health coverage
 
Exhibit 8
·         <Bank> bank monthly statements of joint checking & saving accounts from Oct 2015 – Dec 2018 showing co-mingling of financial resources
 
Exhibit 9
·         <Bank1> credit card monthly statements from Oct 2015 – Dec 2018 showing transactions done by <husband> & <wife>
·         <Bank2> credit card yearly summaries for 2017 & 2018 showing transactions done by <husband> & <wife>
·         <Bank2> credit card monthly statements from Nov 2015 – Dec 2016 (1 statement per quarter) showing transactions done by <husband> & <wife>
 
Exhibit 10
·         Joint electric & gas utility bills for current residence at <address> from <dates>
·         Joint water utility bills for previous residence at <address> from <dates>
 
Exhibit 11
·         International flight tickets & boarding passes (<cities>) for our vacation trip to India in <Month, Year>
·         Boarding passes for various domestic flights flown in India together in <Month, Year>: <Cities> & <Cities>
·         International flight tickets & boarding passes (<cities>) for our vacation trip to India in <Month, Year>
·         Boarding passes for <cities> domestic flight flown in India together in <Month, Year>
 
Exhibit 12
·         Our photos at various events with family and friends throughout the years

Here are a few pictures of our final package. We 2-hole punched the top, used printable sticky tabs and one ACCO fastener (3.5 inch capacity) to hold the entire package.
 
https://www.amazon.com/dp/B00006IBYX/ref=cm_sw_em_r_mt_dp_U_nrunCb7300SBT
https://www.amazon.com/dp/B001GXDWQ4/ref=cm_sw_em_r_mt_dp_U_YrunCbHG56MQJ
 

Here are a few pictures of our final package. We 2-hole punched the top, used printable sticky tabs and one ACCO fastener (3.5 inch capacity) to hold the entire package.
 
https://www.amazon.com/dp/B00006IBYX/ref=cm_sw_em_r_mt_dp_U_nrunCb7300SBT
https://www.amazon.com/dp/B001GXDWQ4/ref=cm_sw_em_r_mt_dp_U_YrunCbHG56MQJ