From Zero to 3 Properties In 3 Years. This is a Rentvestors Guide to Building a Cashflow Positive Portfolio within 3 years. We cut through the hype and the spruik that can sometimes be around Australian property education and break down the cold hard facts in how and average income earner can go from owning no properties, to growing a portfolio. In the book we break down practical guides, the savings ratios required and the clear facts that can help anyone go from renter to landlord within one year, and multiple property owner within 2 years. Owning your own home isn't quite as exciting as it once was, we have put together 3 practical strategies that rentvestors can use to grow their investment portfolio.