If you become the owner of one of these projects it is really
important that you are free to choose who you have on your team. Ideally you want to keep the people who've been maintaining the code up to now, but if it becomes impossible to work with them then you must be able to either fire them (from the project) or be able to walk away yourself.
Walking away is a drastic option, no question, but there may come a point where continuing to work with a team you don't get on with is doing you far more harm than good.
Remember, if you're the Owner then you are responsible, do everything in your power to make sure that you deliver. And if you reach the point that you know you can't deliver, run, don't walk to your management and give them the bad news; putting it off will only make things worse. And if doing that loses you the job... well, if you can't change your organization, change your organization.