A San Francisco start-up called Doorstead is hoping to take over the property management industry. It’s promising a risk-free experience for landlords by giving them rent guarantees. That means landlords will collect rent whether tenants are in place or not. It’s something that might help landlords sleep at night, but one of our Real Wealth Network Directors, Tim Horvath, says they may offer a false sense of security. www.NewsForInvestors.com