She has put her up for sale due to lack of confidence with this horse but as a last resort she has asked me to help. A little info & background on the horse -
She was used as a brood mare up until a year or so ago and wasnt backed or 'broken' until then. She can also be driven but her current owner hasnt done that with her. She's a sweet mare but can be very pushy so she needs a lot of groundwork. My friend recently sent her away to be completely restarted & has now established walk & trot under saddle but when asked to canter she will rear. She has had a 5* vet check and there a no physical problems. Her teeth where floated 7 weeks ago & her saddle was professionally fitted so no issues there. She is also very "barn sour" for lack of better way to put it, she will hack alone but it gets to a point where she decides no more and will rear. She has also reared out on roads when a lorry tried to pass by. The rears arent high & not enough to get anyone off but it has knocked my friends confidence a lot.
Id like some advice on how to help with this mare :)