Joint sponsor's questions for I-134

[microcebus 40]

My potential joint sponsor is working on an I-134 now for my fiancee’s visa and has some questions:

 

1. Is she supposed to say that she has not submitted a visa petition for anyone? (#26a-c)
2. Should she check that she does not intend to make contributions for my fiancee’s support? (#38)  Or should she do what the sample says, check neither box, and mention something like "(description of me) is filing I-129F for his fiancee"?

 

Her income is several times FPL, so I’m not going to have her list assets.  (Or should I?)  Proving assets is an awful lot of work, would take longer than we have to prepare (since the wedding date is already scheduled), and would add a lot of weight to an already quite expensive package to send to Australia.  

 

Another thing I'm wondering longer-term: while this person doesn't plan to ever retire, would needing to retire (e.g. because of her employers or unforeseen medical reasons) affect her ability to do the sponsorship using just income?

 

I am self-employed, had a low-income year both last year and this, and had to print off a lot of bank and retirement account statements to prove my assets.  I’m trying to sponsor my fiancee myself based on my assets, but the joint sponsor is a backup plan.  I am also actively interviewing for new jobs that could pay U.S. $100k+ per year.

Edited August 21, 2018 by microcebus