Finding a good dog training professional
With so many people advertising in the field of professional dog training today, trying to determine who's truly qualified to look after your dog can be overwhelming. What to look for when choosing a professional to help you with dog training :

1) A good reputation, ask around and get recommendations from your vet, other dog owners, or local kennel clubs.
2) Experience. - Inquire about their background, i.e. number of years experience.
3)A genuine love of and devotion to dogs.
4) Extensive and up to date knowledge. Dedicated trainers keep themselves updated by attending dog training and animal behaviour courses, conferences, seminars and workshops.
5) Their training methodology and handling skills. A good trainers first concern should be the dogs well being.
6) Memberships with reputable associations, organizations and training clubs.

General dog obedience tips

Training should be a positive and enjoyable experience for both you and your dog. If you are not in the right mood for training, don抰 even begin. Always reward your dog for obeying your commands promptly! A reward is anything that your dog wants and is willing to work for. Treats are an obvious reward but other rewards could be verbal praise and toys. Several shorter sessions are usually better than one long one. Training should not involve any negative components or punishment . There should be no shouting, no hitting or smacking, no chain jerking on choke chains or collars, and absolutely no electric shocking! Each training session should be enjoyable and positive with rewards for jobs well done.

Training with head collars
Pulling on the lead is one of the few unpleasant experiences of bringing up a new puppy or dog. Using a head collar for dog training has become very popular over the last few years. Training with a head collar does have some advantages over the traditional training collar. Although very simple to use, it is important that head collars are fitted correctly and your dog properly introduced to the collar. Head collars are generally more intuitive to use than a traditional training collar. Head collars are very effective when controlling dogs in difficult situations.

Your dog regardless of breed sounds like a very nervous dog. I would also bet money that she bit both you and your daughter out of fear. If you reach, grab or advance to fast towards a nervous/fearful dog you risk a "fear bite". Fear bites are the most common reason people are bitten by dogs. I know your thinking how can she fear us we love her, but in that moment she felt threatened and you just didn't get the memo she was sending.