From your first post on this thread.
I'm in a long term relationship. I have had other long term relationships. In the middle of getting the money, property and head sorted for marriage.
The big deal is that somehow you think this is starting a marriage on the best possible foot. Wrong. Its starting a marriage on the worst possible foot. You may very well laugh it off. But imagine your fiance finding out that a strange man has been snooping on her, following her, taking pictures of her because you paid him to. Its a violation for a woman. And forget about her hiding things from you, by employing one of these firms, you're hiding something from her without even lying. There is no substitution for trust.