belinda63

First do as previously discussed and formally and in writing withdraw your petition and I-864. That way he cannot get a green card based on being married to you.
 
File for child support with the local office and provide all the information you have. They won't be able to do anything since he does not have a social security number or a way to find him but the filing will be on the record so if he is located they can get him for all the back child support. No paternity test will be required since you were legally married at the time of the birth.
 
After that there is nothing for you to do. As long as he is legally married to you he cannot adjust status by marriage to another woman. Pakistan law may say he can have four wives but US law says you can only have one and USCIS knows he is married to you and he will have to show a divorce certificate to marry someone else and get a visa or adjust status in the US. 

First do as previously discussed and formally and in writing withdraw your petition and I-864. That way he cannot get a green card based on being married to you.
 
File for child support with the local office and provide all the information you have. They won't be able to do anything since he does not have a social security number or a way to find him but the filing will be on the record so if he is located they can get him for all the back child support. No paternity test will be required since you were legally married at the time of the birth.
 
After that there is nothing for you to do. As long as he is legally married to you he cannot adjust status by marriage to another woman. Pakistan law may say he can have four wives but US law says you can only have one and USCIS knows he is married to you and he will have to show a divorce certificate to marry someone else and get a visa or adjust status in the US. 

First do as previously discussed and formally and in writing withdraw your petition and I-864. That way he cannot get a green card based on being married to you.
 
File for child support with the local office and provide all the information you have. They won't be able to do anything since he does not have a social security number or a way to find him but the filing will be on the record so if he is located they can get him for all the back child support. No paternity test will be required since you were legally married at the time of the birth.
 
After that there is nothing for you to do. As long as he is legally married to you he cannot adjust status by marriage to another woman. Pakistan law may say he can have four wives but US law says you can only have one and USCIS knows he is married to you and he will have to show a divorce certificate to marry someone else and get a visa or adjust status in the US. 

So it seems he hasn't interviewed yet so do as@Familyhas suggested above to withdraw I-864, and do it now. And obviously, if he decides to adjust in the US through you, don't play along.

There is no expedite of a visa when the priority date is not current. 
One of the parents could apply for a re-entry permit which would allow them to spend a couple of years out of the US to help care for the child
The child could apply for a tourist visa but it sounds like the odds of getting one are slim to none. She has no ties to her country and strong ties to the US, no job, no property, etc that would compel her to return after her visit. And it sounds like she would need an escort for the travel.
Healthcare in the US is extremely expensive. A visiting nurse can run you $70/hour depending on the area. Even just a home health aid can run $20-30 per hour.  A single trip to the doctor can cost over $300 plus any lab tests or x rays. Have the parents looked into the cost of medical insurance.
 

Including ties both of you have to Columbia would be helpful. Not only her having ties but also you to show neither of you have the intention of remaining in the US. Tourist visas are denied because the intending visitor can't prove they will leave the US. If you prove you, the USC, have ties such as a job, land, home in Columbia why would she want to stay in the US while you life in Columbia.

Legally they have to accept the documents listed on the I-9 and cannot ask for additional documentation. 

Legally they have to accept the documents listed on the I-9 and cannot ask for additional documentation. 

In my opinion, probably best to not naturalize until after the F2A process is finished for your wife and child.  You avoid having to file another I130 for your child, and having to slow down your wife's process at NVC to allow your child's to catch up.  After they get their F2A visas, and come to the US, then naturalize and your child will also gain citizenship as a derivative.  Timing wise, I think it is a wash either way since the F2A category is also current.
 
Good Luck!

I believe she has to ask the immigration court for leave to file the I-485 since she is in deportation proceedings. 

I believe she has to ask the immigration court for leave to file the I-485 since she is in deportation proceedings. 

You are not aware and possibly your employer is not aware of the tax implications of working for one country and living in another.
I work remotely but I was specifically told by the tax department I could not work outside the USA because of the tax issues. You and your employer need to be paying taxes to both the USA as a W2 employee is an employee of the company and whatever taxes are required by the Canadian and local government. I don't know how taxation works in Canada so I can't be specific but as of when you moved to Canada your HR team should have been advised of that so the appropriate taxes could be withheld and paid to both countries. 
You have to file taxes in both countries since you live in one and work for a company in another country

You are not aware and possibly your employer is not aware of the tax implications of working for one country and living in another.
I work remotely but I was specifically told by the tax department I could not work outside the USA because of the tax issues. You and your employer need to be paying taxes to both the USA as a W2 employee is an employee of the company and whatever taxes are required by the Canadian and local government. I don't know how taxation works in Canada so I can't be specific but as of when you moved to Canada your HR team should have been advised of that so the appropriate taxes could be withheld and paid to both countries. 
You have to file taxes in both countries since you live in one and work for a company in another country

You are not aware and possibly your employer is not aware of the tax implications of working for one country and living in another.
I work remotely but I was specifically told by the tax department I could not work outside the USA because of the tax issues. You and your employer need to be paying taxes to both the USA as a W2 employee is an employee of the company and whatever taxes are required by the Canadian and local government. I don't know how taxation works in Canada so I can't be specific but as of when you moved to Canada your HR team should have been advised of that so the appropriate taxes could be withheld and paid to both countries. 
You have to file taxes in both countries since you live in one and work for a company in another country

You are not aware and possibly your employer is not aware of the tax implications of working for one country and living in another.
I work remotely but I was specifically told by the tax department I could not work outside the USA because of the tax issues. You and your employer need to be paying taxes to both the USA as a W2 employee is an employee of the company and whatever taxes are required by the Canadian and local government. I don't know how taxation works in Canada so I can't be specific but as of when you moved to Canada your HR team should have been advised of that so the appropriate taxes could be withheld and paid to both countries. 
You have to file taxes in both countries since you live in one and work for a company in another country

I know of no reason that a US company cannot have someone working remotely for them from another country. If they know you’re in Canada and they’re fine with it, I don’t see a problem.  
Again, I cannot see any reason you need to renew your TN. If you were physically located in the US, sure you’d need it.

You are not aware and possibly your employer is not aware of the tax implications of working for one country and living in another.
I work remotely but I was specifically told by the tax department I could not work outside the USA because of the tax issues. You and your employer need to be paying taxes to both the USA as a W2 employee is an employee of the company and whatever taxes are required by the Canadian and local government. I don't know how taxation works in Canada so I can't be specific but as of when you moved to Canada your HR team should have been advised of that so the appropriate taxes could be withheld and paid to both countries. 
You have to file taxes in both countries since you live in one and work for a company in another country

You are not aware and possibly your employer is not aware of the tax implications of working for one country and living in another.
I work remotely but I was specifically told by the tax department I could not work outside the USA because of the tax issues. You and your employer need to be paying taxes to both the USA as a W2 employee is an employee of the company and whatever taxes are required by the Canadian and local government. I don't know how taxation works in Canada so I can't be specific but as of when you moved to Canada your HR team should have been advised of that so the appropriate taxes could be withheld and paid to both countries. 
You have to file taxes in both countries since you live in one and work for a company in another country

You are not aware and possibly your employer is not aware of the tax implications of working for one country and living in another.
I work remotely but I was specifically told by the tax department I could not work outside the USA because of the tax issues. You and your employer need to be paying taxes to both the USA as a W2 employee is an employee of the company and whatever taxes are required by the Canadian and local government. I don't know how taxation works in Canada so I can't be specific but as of when you moved to Canada your HR team should have been advised of that so the appropriate taxes could be withheld and paid to both countries. 
You have to file taxes in both countries since you live in one and work for a company in another country

When my fiancé came through O'Hara years ago he was held in secondary for hours, missed his flight and had to spend the night in the airport (great welcome to America)
He said he saw his luggage while he was being detained and asked if he could go get it and bring it to where he was sitting and was told no. We never saw his luggage again. Did a lost luggage form, called, everything...it was never found.

None. He was allowed to call me after he was released to let me know of his new flight. I was already at the airport and the flight he was supposed to be on had landed before he was able to call me. But for someone who is denied entry the process may be a bit different since the person is in custody the entire time and wouldn't have the opportunity to call

When my fiancé came through O'Hara years ago he was held in secondary for hours, missed his flight and had to spend the night in the airport (great welcome to America)
He said he saw his luggage while he was being detained and asked if he could go get it and bring it to where he was sitting and was told no. We never saw his luggage again. Did a lost luggage form, called, everything...it was never found.

None. He was allowed to call me after he was released to let me know of his new flight. I was already at the airport and the flight he was supposed to be on had landed before he was able to call me. But for someone who is denied entry the process may be a bit different since the person is in custody the entire time and wouldn't have the opportunity to call

When my fiancé came through O'Hara years ago he was held in secondary for hours, missed his flight and had to spend the night in the airport (great welcome to America)
He said he saw his luggage while he was being detained and asked if he could go get it and bring it to where he was sitting and was told no. We never saw his luggage again. Did a lost luggage form, called, everything...it was never found.

When my fiancé came through O'Hara years ago he was held in secondary for hours, missed his flight and had to spend the night in the airport (great welcome to America)
He said he saw his luggage while he was being detained and asked if he could go get it and bring it to where he was sitting and was told no. We never saw his luggage again. Did a lost luggage form, called, everything...it was never found.