Heal yourself, heal the world with positive energy

I found out this week that several documents I have need to be translated for an upcoming process. I first thought I could do them myself, but some of the wording is much harder than I expected. Now I am thinking about whether to pay someone to translate documents. Has anyone done this before? Did you send scanned copies or typed files? Also, how did you know the person understood the important details? Any advice would help because this is my first time dealing with document translation.