ArthurSkyNet

Did you pay the fees, submit DS-261, DS-260 and civil documents, I-864 to NVC?
Have you received a notification email about completed case?
 
If you did NOT get the Welcome Letter and do everythings above, you should call NVC now.
Phone: (603) 334-0700
7:00 a.m. - 12:00 a.m. EST
Monday through Friday
(excluding holidays)
 
If you did everything listed above, you should write them an email to ask your case status
via this form https://travel.state.gov/content/travel/en/us-visas/visa-information-resources/ask-nvc.html . 
After 2-6 weeks, they will reply.
 
But you should call them now so you can get your answer quicker.
Because if USCIS or NVC required your supporting documents, and you did not give them within 1 year, your case would be delayed or worst, be canceled.

sorry just now saw your questions. you can try to log in to the web site a least twice a day because nvc will opened it the invoice any now. 

Your wife has to fill out an  I-864 even if she doesn't work and then will have to write a letter explaining her situation, what ever it is-stay at home mother, disabled, whatever and why she doesn't have tax returns.  Her uncle (or someone else) will have to be a joint sponsor for your application or else it will be denied.  As long as the joint sponsor meets the guidelines (found on form I-864P) for her/his family/dependent size, your wife not working will not have bearing on the outcome of your case.

The section of immigration law he was denied under basically just says that anyone seeking to immigrate without an immigrant visa can't enter the country.
Legally speaking, here's what happened:
Your husband showed up with a valid tourist visa (or ESTA), and asked the CBP to enter the US as a tourist.
CBP said "you are not a tourist."
He can't enter the U.S. on a tourist visa if he is not a tourist, so CBP cancelled his tourist visa.
He was then at a US airport without a visa.
CBP said "you cannot enter without a visa."
He said "ok, nevermind" and left the US. (withdrawal/voluntary departure)
No ban, no waiver needed, because he did nothing illegal.
Had he been removed, it would have gone down like this:
Your husband showed up with a valid tourist visa (or ESTA), and asked the CBP to enter the US as a tourist.
CBP said "you are not a tourist."
He can't enter the U.S. on a tourist visa if he is not a tourist, so CBP cancelled his tourist visa.
He was then at a US airport without a visa.
CBP said "you cannot enter without a visa."
He said "I won't leave."
CBP removed him.

Right. He was at a U.S. airport. CBP determined he was an intending immigrant. He was thus not eligible to enter as a nonimmigrant, and had no immigrant visa.
I'm aware. But legally speaking he withdrew, aka "nevermind"

He was found inadmissible to enter the U.S. as a non-immigrant because he could not show strong ties to his home country - CBP found it more likely that he would try to to remain in the U.S. rather than return home. In essence, they found it likely that he would enter the U.S., marry you and then file for adjustment of status while in the U.S. While this is legal, you can't enter as a non-immigrant with the intent to stay.
CR-1 is an immigrant visa (K-1 is technically as well), he can't be denied for having intent to stay (that's the point of an immigrant visa), and he did nothing illegal - immigrant intent was only presumed.