AmyMay
Situation normal
Who will look after the mare at your dad's though? And she must have company.
I can't see any problem with the mare other than she's on the wrong yard and has a new owner who needs support.
Move her to a yard with full livery and a yard owner who understands the behaviour of a worried, genuine horse.
You say you've contacted some ex-racehorse charities, so I presume she is an ex-racer? how long has she been out of racing? Jogging is not unusal in an ex-racer as they don't receive much by the way of schooling.
Race-horses spend their entire career living by a strict routine that they know by clockwork. When I took on mine, he had been out of racing for a few years, but just the change of surroundings was enough to unsettle him, like yours he became a nightmare so much so that he put my OH in hospital twice by being such an a**e!
I was at the point of giving up with him as I wasn't comfortable handling/riding him but decided to keep trying, so found a brilliant trainer (Monty Roberts trained) who not only bought about a complete turn around for my horse but for me too as she taught to always 'think outside the box'. I soon learnt how to figure out why he was behaving the way he was. It may have been something that was implanted in him during his career, once I'd figured that out, I could adapt to the situation using the trainers advice and help and gradually he improved no end. He would still have the odd silly moment or two, but I can say hand on heart he was never dangerous again. Definately the more exercise he had the better it was for his sanity and that would include at least one or two good gallops a week - OK so they might have been uphill (for our sanity!) he was clocked at 37mph on one particular steep hill!
You say she is better when ridden, so it may be worthwhile investing some time and money in finding a good trainer that would help you both.
I do hope you managed to get her sorted one way or another it's a rubbish situation to be in.