
Hi Sami,
My best advice to you is steer clear of anyone using this> dog whisperer monniker. It seems to in the main have been leapt upon by flimflam merchants and fly-by-nights ;)
With every confidence as I have used them I would recommend that you view the
Association of Pet Behaviour Counsellors website (it will list reputable behaviourists in your area) worth also looking at is the
Association of Pet Dog Trainers site they can often help with recommendations.
Hopefully one of our members from your area will come along with a personal recomendation for an accredited reward based behaiourist. (Bear in mind you may need a vet referal)
Good luck... but do be aware anyone can call themselves a Pet/Dog 'whisperer'... or Psychologist....