Require that they name you as an additional insured on their poliyc2.

@Kyle Pierrehumbert in addition to checking out the Zillow suggested rent, what comparison did you do between your property and nearby competition?

However your situation becomes a trickier case study since these properties first served as your primary residence which could provide additional benefits form a tax perspective not available to an owner of investment real estate and nobody has a crystal ball and knows the property with certainty will transition into an investment property. 

Additionally, I introduce myself to the neighbors within 2-3 houses and explain what I'm doing. 

My skilled trade education started at 7, working alongside my Dad, who in addition to a thriving electrical contracting business, always had side projects.

When they are "fully" funded, I may stop adding to them and put that money back into reinvestment accounts to buy additional assets. 

Have the tenant sign the docs and offer them 72 hours to make any additions to your move in inspection report. 

If anyone's aware of any promising deals worth exploring, I'd greatly appreciate it if you could share the details with me.

Making connections in the community may lead to business opportunities and offer insightful information about the local market.Look into internet platforms where properties could be listed in addition to more conventional approaches.

Additionally, you can always ask for a bank statement showing that they have decent reserves.