I realized after reading a book "Rich Dad Poor Dad", that I should really concentrate my efforts on unearned income and feel real estate is a great vehicle for passive income.  

especially vacuum up the precipitate after having just added concentrated chlorine (hypo) *fumes*

What helped me out is to only concentrate on one thing at a time.  

I generally tell new investors that are looking for home runs to concentrate on getting singles and that means getting up to bat.

My long-term goal, besides building up a portfolio of rentals, is to establish a small to medium size property management company, where my wife and I can concentrate on giving exceptional service and individualized attention to our customers.

we let everyone concentrate on the mid west while we have our little pond to ourselvesits amazing how little play Portland gets and how solid it is

In concentrations under the Cornell University Program they offer "Hospitality Real Estate Finance", "Valuation Principles"... etc.

I currently own two businesses one which I have to man 6 days a week(which makes it hard to concentrate on my flips).

Since my company borrows in one asset class, we generally use one (the best, theoretically) lender for that class up to their local loan concentration underwriting limits.

You have to be careful as cat urine is so strong and concentrated your cleaning job could turn into a gut job given long enough.