Article brought to us by Mortgage Free website The secret sauce behind smart property portfolios — straight from a leading mortgage broker. Key Points: Think property investing is all about luck or location? Then it’s time to get with the…times!  Because in 2025, the most successful investors aren’t chasing trendy postcodes or buying into hype. They’re treating their portfolios like a business, with discipline, planning and a razor-sharp understanding of what makes the numbers work. Jon Mardell of Mortgage Free has spent years helping buyers make smarter decisions. His takeaway? “The best investors don’t guess, they prepare.” So if you want to level up your property game, here are the…