Hello, I want to avoid too much bureaucracy

As the others have mentioned, visajourney.com has all the information you could possibly need on this topic. Have a read there first, then if you have questions on that material, bring it up here.

But yes, you absolutely cannot file your I-129F if she is married to someone else. Polygamy is not legal in the US! Clearly there are a lot of obstacles that you need to overcome before you can even think about having her sponsor you for a green card.

I did go to that website and looked at the flowchart. It seems not that complicated. Like I said she just needs to get the final divorce, then file I-129f, then I get the K-1 visa and then we can be together. I just want to make sure I am not forgetting something.

I am wondering why you said that you have to meet two times? I never heard that one before. And just visiting each other two or more times would be a waste of money and time, considering we can just do it all in one move.

Because that's the law. Read the instructions on the I-129F form. Says right there. And you have to provide proof that you have met at least twice before the petition is submitted.

You mentioned she only works part time. When my husband and I underwent the green card process, even though I had money saved up he has to prove he would be able to suport both of us financally without my help. This ment he had to prove over the last 3 years he made at least $17,000 which is the minimum for a 2 person household (at least it was when we went throught he process) Also, when you undergo the greencard proccess she becomes legally responsible for 10 years, even if you get a divorce (unless you leave the country after the divorce, get citizenship or a few other things).

Part of the reason people are suggesting you 2 meet each other is that whenever you go to these interviews they like you to bring a nice big stack of proof that you know each other and aren't just doing it to get a greencard. Pictures of you with each others family and friends on muliple occasions are a big plus. Potentially keep phone bills between the 2 of you could also help. Its a pain in the butt but they just want to make sure your for real.

Best of luck!

the "MEETING" is NOT a suggestion, it is a, actual REQUIREMENT. If you don't provide the proof, it will be denied!

I am wondering why you said that you have to meet two times? I never heard that one before. And just visiting each other two or more times would be a waste of money and time, considering we can just do it all in one move.

Because that's the law. Read the instructions on the I-129F form. Says right there. And you have to provide proof that you have met at least twice before the petition is submitted.

You can call me blind for not seeing the meeting twice requirement. But I used ctrl-F to search the pdf I-129f form for word "twice" and it didn't find the word. And the section merely says:
"Has your fiancé(e) met and seen you within the two-year period immediately receding the filing of this petition?
Describe the circumstances under which you met. If you have not personally met each other, explain how the relationship was
established. If you met your fiancé(e) or spouse though an international marriage broker, please explain those circumstances in
Question 19 below. Explain also in detail any reasons you may have for requesting that the requirement that you and your
fiancé(e) must have met should not apply to you."
It doesn't mention a word about having to meet twice.

I don't know about the "twice" but you have had to have met at least once.

Perhaps they've changed the wording since they added the bit about the marriage brokers. Years and years ago it was a written requirement to have met at least twice. Some of the rules have changed since I started looking all this US immigration stuff back in 2001