Gonna pull a broken record on you, but I suggest Jeffrey Taylor's web forum at
Mr Landlord Q & A forum
The threads on that forum are by real landlords, instead of some caffeine junky who pushes a RE course entitled "How to buy $20M of real estate with a stack of quarters."
May I also suggest you consult with a mortgage broker, preferably one who deals with investors and perhaps owns a few himself.
I wish you the best of luck.
Jürgen