Then they tried to transfer me and we got disconnected.

Sounds like  you did everything right, there was just a disconnect in our communication.

I then rang Columbia Gas and found out they disconnected the Gas in January and Flex did not change the ownership for notifications to the property management company; therefore they were notifying of this disconnection to the address of the old owner and not Flex. 

Not a lead.They have not expressed any interest to you that they are willing to sell their house for cash (at a number below market value).I think this is what the disconnect between us is.Your software can find PROSPECTS.. maybe.

.*  Some of the numbers were disconnected, but I tried all of them and BOOM! 

I can completely disconnect from personal life and concentrate on business. 

Since it was on fire, the electric was already disconnected.2.  

This is where my disconnect is at.

@Eric JamesMost buyers North Americans are happy to pay cash for several reasons: 1) they can get a higher return on their cash than with most other "safer" investments, 2) they buy in Mexico / Puerto Vallarta in order to diversify their investments overseas in a market where prices aren't artificially held high buy leverage and artificially low interest rates and 3) they realize that, when real estate prices in their home markets become too disconnected from rents (who can't grow to the sky) and interest rates inevitably go up, prices can (significantly) drop like they did in 2007-8. 

We’ve started to realize that the experienced companies are the ones that discuss getting an asbestos survey prior to knock-down (the house was built in the 1930s), disconnecting utilities, getting surveys, etc.