If true, there are many better ways to deal with this than play forum hero. Law is a regulated profession and comments like this are almost invariably complete fucking bullshit.
There are things called Law Societies or Bar Associations that are built to accept and investigate these types of complaints. That's the nature of regulated professions - there are places to complain and investigate.
Do I want others to benefit from my experience? Yes
Do I want to help fellow entrepreneurs avoid negative immigration consequences? Yes
Do I want Peter to lose his law license or get sanctioned? No. Even though I have specific proof which could get him at least sanctioned.
Do I care whether more or less business goes to Peter? Also no
His actions turned my life upside down. It took me years to fix things. Abandoning me after rejection was worse. He talked to me the day before rejection in a very positive discussion. After the rejection he didn't reply to any email nor returned any call. His paralegal kept responding to me.
I am not trying to be vindictive here.
I am just trying to help fellow entrepreneurs. I went with Peter based on his AMA. It ended up being a huge mistake in my case. Hope others can use my experience as a data point to do further due diligence!