This article is a good sign that we have reached "Peak property speculation" - good one to bookmark for when they start to clean the mess up, there are a few important bits of information missing from the article, such as some incredible luck coupled with very high gearing but I think most will get the gist of it.
Investment properties: Gen Y couple rentvested their way from $15K to $10m and quit their jobs
“When you buy that first one — let’s say you purchase it for $400,000 and it grows in value to $500,000 over a few years, then you can go back to the bank and refinance 80 per cent, hypothetically, of the new purchase price. That will give you access to $80,000 — 80 per cent of the $100,000 growth — and you can use that to put a deposit on the next house.” But they key to making sure you’re taking on good debt that you can handle is to focus on rental yields, rather than just capital growth. “You have got to make sure the rent covers that extra debt you have caused on the first house and then the new debt on the future house. You don’t want to create an inward debt that just spirals,” Mr O’Neill said.
Interesting that the journalist didn't ask the obvious questions along the line of - and what happens when rental yields start to drop and/or vacancies jump up suddenly?
I pity the shareholders of whichever bank is on the hook for this disaster in the making.