You posted this to the DCF forum, you probbably should have put this in the K-1 forum
You need to get an I-134 filled out and notarized, and send it to your fiancee for the interview, and also prepare alot of evidence of communication since I-129F filing up to a week or so before the visa interview, documentations like phone records, emails, chat logs, post cards, and letters, etc...
Advice on the I-134:
The consulates tend to treat the I-134 like a mini-I-864 as so prefer the same financial evidence as the I-864. This is why many of the consulates and embassies specify IRS returns or Transcripts, employer letter, pay-stubs in their instruction packet letter.
In our case this what the I-134 included.
- I-134 signed and notarized.
- SIMPLE Tax transcripts from the IRS for past 3 years, (Redundant for the (1040,W2,1099) but are free from the IRS http://www.irs.gov/faqs/faq1-6.html
- Photo copy of IRS form 1040, and W2s for past 3 years (Not necessary if you provide the transcripts)
- Letter from my employer stating annual salary, job responsibility, and that is full time, on company letterhead.
- Photo copies of past month or so of pay stubs up to a few weeks before the interview.
Bank info and asset data is not required as long as income exceeds %125 povertyline counting self and fiancee, and any dependents, you should be fine.
I did not provide any asset data, my income was sufficient, keep this as simple as possible.
More on the next steps can be found in the FAQ:
http://www.visajourney.com/faq/k1k2visa-application.html