pushbrk

You haven't mentioned anything that's a red flag.  If you're willing to do the homework, and pay attention to detail, I don't see any reason not to do it yourself.

The joint sponsor is not establishing a household that includes you.  You are counted simply because you are the intending immigrant.  That you plan to begin your life in the USA at the joint sponsor's house, is irrelevant.  You will see nothing on the form or in the instructions that talks about establishing any household.  Don't read thing in that are not there.

The joint sponsor is not establishing a household that includes you.  You are counted simply because you are the intending immigrant.  That you plan to begin your life in the USA at the joint sponsor's house, is irrelevant.  You will see nothing on the form or in the instructions that talks about establishing any household.  Don't read thing in that are not there.

No issue at all, but she WILL include a current pay stub from the new employer as evidence of her current income.  Tax related documents are about the past.

The US Consular Officers will also prefer Dad as Joint sponsor.

USCIS definitely cares whether you've been together in person to consummate the marriage.  That evidence MUST BE provided with the initial petition.

You haven't mentioned anything that's a red flag.  If you're willing to do the homework, and pay attention to detail, I don't see any reason not to do it yourself.

Everything about your case will be "scrutinized", but if you are honest, above board, and present evidence you were together in person, during the marriage OR after and before filing the I-130, nothing at all to worry about on that score.
 

You haven't mentioned anything that's a red flag.  If you're willing to do the homework, and pay attention to detail, I don't see any reason not to do it yourself.

exactly
 

Yes and yes

Have you looked at the I-864 and the separate instructions.  You DO enter some information from past tax returns and supply at least the most recent one, at NVC stage.  BUT, your current income is i a separate section, where you will correctly enter zero.  Unless you've got well over three times the income requirement in cash, you will not qualify to sponsor your spouse, and will need a joint sponsor.
 
Do you have around $100k in "liquid" assets sitting around?  If not, bad plan unless you want to involve a joint sponsor who DOES qualify.

Take everything you can think of.
 

You have things like passport stamps and boarding passes as primary evidence of the time you've spent together in person.  Throw out that affidavit from your mother.  Can't help and can hurt.  

Answer "To Be Determined".  That's what you enter in the intended address, first line.

Have you looked at the I-864 and the separate instructions.  You DO enter some information from past tax returns and supply at least the most recent one, at NVC stage.  BUT, your current income is i a separate section, where you will correctly enter zero.  Unless you've got well over three times the income requirement in cash, you will not qualify to sponsor your spouse, and will need a joint sponsor.
 
Do you have around $100k in "liquid" assets sitting around?  If not, bad plan unless you want to involve a joint sponsor who DOES qualify.

They should match.  Check your copy of the I-130 you already filed.
 

Everything about your case will be "scrutinized", but if you are honest, above board, and present evidence you were together in person, during the marriage OR after and before filing the I-130, nothing at all to worry about on that score.
 

Lots of us knew about proxy marriages, and I understood what a double proxy marriage was.  What I didn't know was about the Montana difference, or for certain, what exactly the OP meant when using the term, "double proxy marriage".  Assuming the term was used correctly, they need to fire the attorney.
 

Not an issue.

I guess I can see why you might think that, but many retired or disabled folks with plenty of income live in the Philippines.  Most of the ones I know here, would not need a joint sponsor.

I have military retirement and social security for myself and my daughter. All together exceed 125% poverty level for 5 people. 

This applies to US immigration proceedings.  That being said, he may want to take any relevant information regarding his Swedish immigration proceedings with him to the eventual interview.
 
Good Luck!

Probably.  She'll need to hand write in the tax section.  2022 income below filing threshold