You're doing well so far by taking the first step and asking questions about managing your money and building your future wealth.  Well done!

Suggest you investigate setting up a Trust for the property with a company as the Trustee of the Trust.  Your parents could possibly be the Directors of the Trustee Company (if they have an unblemished financial record), and you and your parents can decide who should be the beneficiaries of the Trust.  Then look at you, (and your parents?), lending money to the Trust for the purchase, borrowing in the name of the Trust for the balance of the purchase, and if your parents are working perhaps they could be guarantors on the loan so as to meet the servicability requirements.

If you can find, or create, a +CF property the Trust should have money to distribute each year and your circumstances suggest that under current tax law it may be possible for you to receive a distribution amount tax free – (for you to put towards your next investment perhaps?)

You are on the right track, stick with it – where there is a will there is a way!  You will need some professional advice that takes into account all of your (and your parents) personal circumstances.  A half hour chat each with a legal eagle (regarding the Trust/Company structure), accountant (regarding the tax aspects), and a mortgage broker (regarding the lending aspects) should clarify things for you – there may be a cost especially for the legal and accounting advice although mortgage brokers often offer their services free to you (shop around, some may offer initial interview free hoping for future business).

Good Luck!