So I got out of class last night and my professor was telling me that, in order to do an income(investment) property, you will be charged with a higher interest rate compared to a property that you would finance for yourself.

(2) Does it save money when compared to buying a retail house of the same?

IMO $800 is money well spent compared to what you can save.  

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That compares very well with the 16 - 25K of tax plus depreciation recapture on a profit of 80K .The real question is can you find good replacements that fit your parameters within the time constraints.

The house sales and rentals are down compared to previous months.

New builds in Vegas are grossly over priced compared to resales.

Especially, compared to someone who does it as a main line.Result? 

Here's the breakdown of each scenario:Sell: I bought the house less than a year ago for 150K haven't built much equity, it's a city neighbohood where comparable homes can range from 100k-200k.

And, even though the price point for entry is comparatively low, it requires you to be an expert at deal analysis, rehab estimation, marketing, negotiation, creative strategies, and multiple exit strategies.