During the class today it was mentioned that 8 states already have some variations on the EPA guidelines.

business card, or some variation of it.

All of my plans are similar with a few variations, and I need a framer that can commit to me.

But, it is some variation of that. 

Even a small variation upwards of the Interest Rate, or lessening of the loan period, will wipe out ANY positive cash flow.

IF your question involves some variation of conflict with the owner it would be worth the money to have a consult with a Real Estate attorney.

While most of what you said is true for a significant portion of the nation's markets,  it is not applicable everywhere.Funny enough, the ".67% rule" is actually the San Diego variation of the "1% rule" that I've reverse engineered to  better reflect the unique variables in our market. 

Most of the folks working at the office say a variation of 'Its a bad town to be a small landlord' due to their relentless protection of tenants.

Because I tend to not spend too much of my time on the BP forums where a lot of the posts are variations of newbies looking for advice, or investor-friendly agent suggestions, etc. etc.

There are a million variations but any of it will help you get the idea.