There is nothing mysterious about it.

Buy the book by Lonie Scruggs, "Taking the Mystery out of Money."

Yesterday is history, Tomorrow's a mystery.

Rehabbing MHs, rental grade SFRs is not a mystery and simple work.  

Joe Gore I concur, the mysterious "partner" and Dash F are real winners.

The Lord works in mysterious ways, I got a contact from a friend of a G.C that has been doing work around last night and set up a meet/interview this Friday to connect and plan for a potential business future together.

@Dane Ohlen  absolute worse company I have ever dealt with they prey on newbies.. how they still do deals Is a mystery to me.. they are to be avoided at all cost in my personal opinon based on first hand experience with these guys

Thank you for solving that mystery for me.SUCCESS BREEDS SUCCESS

Wait until the first time you get sick from some mysterious disease because you were prepping a paint job somewhere in some filthy area and some decades-old bacteria were waiting for you to scrape them up.

Seriously, though you can get a "Non Contact Voltage Tester" for $20(name brand tool) from a home improvement store and only $6(cheap no name brand) at Harbor Freight tools....it is a very easy tool to use, that when you pass it over the black(hot) wire will light up and make a buzzing sound, if the line is hot/charged.But, as others have mentioned, you may do what I have suggested and the line appears uncharged, BUT, it is connected to a switch at a breaker box or wall switch that may accidentally be turned on and then create a very dangerous scenario.I personally do not like mystery electrical wires!