Generally I find referrals from friends (ie. employers or ex-employers of DH) to be more reliable than from other helpers (whose references may be motivated by friend/kinship and other considerations not related to ability).
Why not head down to one of the more reputable agencies - I've heard good things about Josie James on Pottinger St from my helper, so it seems trusted by DHs) and see if there are any who strikes you as a good candidate. When I was processing myDH forms, I saw a number sitting in the waiting area on Sunday. That way, you can use your own instincts rather than blindly trust someone else's judgement.
Why not head down to one of the more reputable agencies - I've heard good things about Josie James on Pottinger St from my helper, so it seems trusted by DHs) and see if there are any who strikes you as a good candidate. When I was processing myDH forms, I saw a number sitting in the waiting area on Sunday. That way, you can use your own instincts rather than blindly trust someone else's judgement.