Effective Portfolio Structure for realising Equity

Hi.

I have two investment properties (about $800k)and am preparing to buy a third.

The next property will probably be one in the market that I intend to live in (Sydney) and maybe even make it my PPOR in a few years but am quite happy renting for now.

Now, I am interested in opinions on the best way to realise equity out of the investments over time… to minimise non-deductive debt in my (future) PPOR.

I have the general intention of retaining my current IPs, I don’t really have enough spare time to do the market research to manage turning them over regularly.

I know that tax deductibility of loans depends on the purpose not their security but does anyone have any experience on effective ways of structuring these arrangements?

and how to transition my situation to an effective structure?

Thanks!