[Mardelin]

Your girl being a maiden may be the reason for her not standing for the stud.
My question to you did you and the stud owner assist in the breeding. In other words; did you hold the girl for the stud and make her accessible to him and did the stud owner guide him. Maidens can be reluctant to breed and require intervention. Gently pin a scarf or light blanket around her neck, and draw the blanket lightly over her head so she can't see. Remembering all the while to hold onto her gently and make her accessible to the male. Do this before you bring the male in. The stud owner should be guiding the stud.

As far as the other question. All I can tell you is go with your heart. If you feel this breeder is of questionable character, then quickly establish a relationship with your acquaintance.