- I know Cash for Keys is a common tactic.

I would only Buy A and B class though.. low end Vegas is not different than any other HOODY D / C class in other parts of the country. 

They are much more common in Minneapolis but have been done in St.

Beer and cigarettes seem to be a common theme.

I am trying to install cameras for security in common area so can get more information then.

It is very common to lose money on that first fix/flip (I did).

Hoping to see if someone can tell me if master lease options are still common, do most investors look for owner financing or what other ways can you/have you structured deals with little or no money down.

And you are taking a risk of opening those walls and finding out the studs are at an irregular spacing or 18" apart, which is common where I invest. 

And I say that as someone that does think the ability to add density with ADUs is a great start, just like they commonly did in the late 1800s and early 1900s in every city that experienced major growth.Overall the solution to housing affordability is 15 years out.

Hard money lenders (MICs in Canada) are by far the most common type of OPM finance.