Finding contact information for off market owners

[Izaiah Barba]

Hey BP, I hope everyone is doing well amongst these crazy times. I was wondering if anyone has any suggestions on how to get contact information for owners of single family properties? I am looking to reach out to some owners in my market and inquire if they are interested in selling their property. Side note- the owners of these single family properties are using their properties as investments. 

I have used list source however the contact information isn't the best. Additionally I have been to some of the properties that I am interested in and asked the tenants if they wouldn't mind sharing their landlords information. I have received a few leads from this avenue but just wanted to see if you guys have any other suggestions on ways to go about this!