OP, in response to your original query- if your horse injures a trainer because you have failed to disclose issues, deliberately misled the trainer regarding the horse’s behavior, or otherwise created an unsafe situation, then you need to reevaluate what you’re doing. If your horse injures a trainer because **** happens with horses, well, that’s life. It’s up to the trainer to decide what they are comfortable riding, and it’s your responsibility to provide them with all the necessary info they need to make that determination.
I have to disagree with the person who said that trainers who travel aren’t worth their salt. Speaking as a trainer who travels, there are a number of reasons for my business model, not the least of which is that I have no desire to board horses anymore, so I take on 2-3 full training horses at my place and travel to the rest (mostly lessons, but a handful of training horses as well). Most of my training clients also ride the horse themselves and are based at home or small community barns, so it is far more convenient to keep the horse in the environment in which he will ultimately need to function, and give the owner as much opportunity as possible to be a part of the process. Obviously this doesn’t work for all of them, and there are some that need enough dedicated time that they need to come to me, but overall I have found this model to work very well- and I have work coming out of my ears with a decent waiting list, so it appears that my clients agree
I am picky about what I ride, and after having a few new clients “lie by omission” when describing their issues, I have learned to ask very leading questions prior to getting on. I think there is a belief among some people (beginners in particular) that pros will ride anything; I try to be clear with my clients that I rely on my health to work and support myself, and that I am not going to be the right trainer for every horse. I’m not in the business of blowing smoke or bleeding clients for money when I know a horse is beyond my boundaries.
It’s also very important to me that clients be willing to reframe their approach when it comes to dealing with problematic behaviors. I repeatedly get calls from riders who are dealing with bucking/napping/etc because their “horse is a jerk”, and I arrive to find a horse whose attempts at communication have been ignored for so long that he has finally resorted to his last option- dump the rider. The rider has to totally step back, learn how to actually communicate with the horse, and rebuild the trust that was lost in order to prevent that escalation from recurring. I also see people who have anthropomorphized their horses to death, and have created dangerous horses with no boundaries, because they’re blinded by a fairytale notion of “bonding”. Both of these situations are hazardous and devolving, and if the rider can’t re-frame his or her approach, we won’t make any progress.
OP, after skimming your past posts, it seems like this horse is a bad fit. I hate to judge without knowing the people in question, but it also sounds like you don’t have good, consistent support in the form or a trainer or mentor. These things together don’t breed success. I would consider what you want out of horse ownership- riding, learning, enjoyment, whatever- and have a serious think about whether this horse is the one with which you can achieve that.