Craft a warm, engaging news report spotlighting the top 5 local networking events for real estate investors in Polk County. Center on the Polk County BiggerPockets meetup as the marquee event, and weave in open-to-public gatherings like the Polk Nursery & Garden Center listing to show the variety of community-driven opportunities. Invite readers to discover how these gatherings help investors build deals, gain advice, and grow their networks, with a friendly, informative tone.