Can you elaborate on the bogus lawyer aspect of your post? Was this a collaborative and complicit attempt to apply for entry clearance using fake documents (false marriage certificate)? It's not clear from your post as to what happened.
Generally, previous removal from the UK can be overlooked in a subsequent application in a settlement category (spouse, fiancee, etc) but this may not be granted if there has been other activity that is deemed to have frustrated the intentions of the immigration rules. It's not possible, on a general discussion forum, to predict the chances of a successful settlement application, especially without further and detailed information as the history. I would therefore urge them to seek competent professional help with a UK-based lawyer or registered immigration adviser.
Barty wrote:Brazil seems to be a particularly different country in terms of immigration rules.
True, possibly, but not particularly relevant if the person in question wishes to settle in the UK rather than Brazil.