This could or could not be a scam, but certainly looks like a scam.
If so, it would be the type where they afterward tell almost all applicants (never two in the same neighborhood) that each of them was "the selected one". Then they ask to send a relatively small amount (like $ 456,78 ) to guarantee that you will not give up or something like that. Never send any money to people you don't know. Ask for references that can be checked AND check them. Very important: don't be greedy. Your greed works for the scammer.
If it is a genuine post, Mr. Stevens will certainly accept my apologies and provide information that will help verify his honest intentions.
Luiz