Just to be sure, back in 2017, I went looking for a lawyer and they wanted $4000 and I would have to do most of the work anyway. The lawyers did not seem to be too interested in this kind of immigration work. So, I did the I-129 myself. Go through the I-129 and unless you see something that your answer may cause a major issue, my advice would be to just do it yourself. The guides and people here at Visa Journey can be helpful. My fiancee was in the Philippines and I hired someone to help her on her end once the I-129 was approved primarily to assist her because she was not comfortable with putting her stuff together and using the computer.