Hi reggieb and welcome to the forum
I am sorry to hear you are struggling with your IVA but bankruptcy can be a good solution to your debt problems and it is right to do the research beforehand.
Like your IVA bankruptcy is an individual debt solution. your partners credit rating will not be affected or her job. however, you will have to declare her income as the OR official receiver will want to make sure that you are both contributing fairly to the household expenses etc.
If you jointly own a property with equity only your share is at risk however there could be an issue if you were forced to sell. have a look at the article below as this will answer many of your questions and others you may not have considered in more depth. please keep us informed and ask anything.