Hi Mardi,
In regards to the serious issues with your rental property:
It sounds as though you will probably have to take this dispute to the NSW Civil and Administrative Tribunal. They can make a determination to compensate you based on the poor condition of the house. How long has this been going on? Because a time limit of three months (to apply to NCAT) can apply.
What you should do first is:
1. Write down and take photos of all the problems with the house.
2. Collect all evidence you can of your medical condition resulting from injury
3. Gather evidence of all correspondence between you and real estate agent/s.
4. Write down what the most recent real estate agent said about how dangerous the house is and when he said it (even better, email him, asking him to describe why he thought the house is in bad condition when he visited and hopefully he will reply confirming what he saw)
5. Call NSW Fair Trading and make an official complaint about the state of your house. Explain to them the whole situation including how long this has been going on, Real Estate Agent responses, your injury and so forth. NSW Fair Trading's phone number is 13 32 20.
6. Get tenancy and legal advice. Tenants NSW is a good place to start. Here is their contact page:
Contact Us - Tenants NSW On their contact page is also the phone number for Law Access who may be able to provide you with further information or a referral for legal assistance. Alternatively, or in addition, you can get in contact with your local community legal centre.
7. From there, you will probably have to make an application to NCAT.
Due to the time limits that normally apply, I suggest that you move forward with these enquiries as quickly as possible. (You don't need to have finished compiling all your evidence before calling NSW Fair Trading, Tenants NSW, Law Access etc)
In regards to specific compensation for your injury:
NCAT isn't the place to bring a personal injury claim. NCAT would potentially make an order for you to have rent reimbursed, possibly compensation to help with moving costs (speak with Tenants NSW about what exactly you would be compensated for).
For your personal injury claim, you should seek legal advice and find someone to represent you in making a claim. Again, your local Community Legal Centre is a good place to start.