We use a guy form Upwork who charges $.25 a search with no minimum.

You can also find real estate investing groups through meetup.com, Facebook, or a Google search.

Once I build a list of prospective homes, what steps should I take to identify which homeowners might be interested in selling?

You'll quickly narrow your search based upon what's feasible and a part of town where you want to be. 

I'm searching for a plot of land to build Treehouses for Airbnb. 

Or have other suggestions or tips for sorting property searches, managing goals, and renovation details.  

Hey Priyanka,The best strategy I've found is to identify listings that are of interest to you, look at the listing agent, and then contact them directly.

You can achieve this by regularly checking the Search Terms report, routinely searching for your brand on Google, and pulling the actual keywords that are converted in your CRM.

Learned of these from quick search results.

Leverage my expertise to connect with top-tier, peer-reviewed real estate professionals and discover the best funding options available on BiggerPockets.What You Can Expect from BiggerPockets' Concierge Service:Personalized Assistance: I'll ask 6 to 10 questions to fully understand your strategy and timeline.No Hidden Fees: Enjoy this complimentary value-packed service as a thank you for being a Pro member.Powerful Tools: Using BiggerPockets’ advanced Finder Tools, I’ll conduct an in-depth search and, with your approval, connect you with investor-friendly agents, lenders, tax professionals, and property managers.