@Completelywornout Do you fully understand the implications of living with an exempted dog?
Given the amount your posts show that you do not understand (ie, a dog is well trained but only responds to one person... etc)... I am really concerned you do not and the penalities for getting this wrong can be pretty catastrophic.
I am basing this on the situation with Pitbulls as the government to my knowledge have yet to release full details but its likely to be the same:
1 person will be the registered certified keeper - you can't chop and choose, if that registered keeper is in hospital, away with work, in prison, on holiday, away for educational purposes, for more than 3 weeks out of 52 - exemption certificate voided. To court, dog probably seized.
The registered keeper must be a fit and proper person so if the applicant has a criminal record suggesting otherwise (likely drugs or violent crime, or multiple offences), they won't be able to be the keeper.
If you rent, you must check your landlord permits you to keep an illegal or dangerous breed. I know some people will attempt to challenge this for dogs who have lived in the same rental property without any incident for years, but I would not bank on that having positive results any time soon. If there is no permission to keep your dog at your property (as the keeper AND address are listed) then you can't keep the dog.
The dog will need to be insured 3rd party, neutered/spayed, muzzled in public (and depending on your home layout this is anywhere with an 'implied right of access to the public', simply... anywhere delivery/post/emergency services would go if they needed to get to you. Including your car. Held on an appropriate length leash for the environment (fixed length for sure, we don't yet know about longlines).
You will not get health insurance for your dog from the moment the ban becomes law - do you have the cash for any illnesses/accidents?
Finding people willing to work with your dog (walkers, trainers etc) is getting harder as many insurance companies are refusing to cover us for this work (there are still some but that doesn't mean a business will choose to go with them of course).
Breaching any of these conditions can land the keeper and dog in court, dog seized and kennelled in a secret kennel. These are, from personal experience, vile at best. To keep staff safe there is almost never any contact with the dog, theres no exercise, just food, water, and choice of indoor or outdoor area. This could be for months.
It is highly likely that the government will want to crack down on dogs not proper exempted or people breaching exemption rules.
It is also very likely that if a dog doesn't measure up to be an XL bully, it will be considered a pitbull - we do not know yet if the exemption process will be the same, as the 'grace period' for Pitbulls ended at some point in the early 1990s. The proceedure NOW is you have to go to court to prove your dog is not a danger/argue whether htey are type or not. This may or may not result in seizure of your dog, depends much on the area and the opinion of your local force/Dog Legislation Officer.
Personally, though it would kill me to make this choice for one of my own, I would euthanise.