If I got it right, they don't allow you to travel under VWP even if you filed I-407. I think the reason is that you are a "potential illegal immigrant" as you already once had interest in a resident status. Therefor you must apply for regular visa and proof very well that you plan to go back to your country of citizenship. I think that's quite tricky and frustrating as this costs way more than the VWP. Also if you don't follow a regular job, as a single person it's quite hard to proof that you are going back for sure. I wish I could acquire an attorneys help. Any info on if I could do that even though I'm not in the country of my citizenship?

If I got it right, they don't allow you to travel under VWP even if you filed I-407. I think the reason is that you are a "potential illegal immigrant" as you already once had interest in a resident status. Therefor you must apply for regular visa and proof very well that you plan to go back to your country of citizenship. I think that's quite tricky and frustrating as this costs way more than the VWP. Also if you don't follow a regular job, as a single person it's quite hard to proof that you are going back for sure.