We haven't had the inspection yet, nor have I verified the seller's rent roll or expenses other than property taxes.

You make $ with non-refundable deposit up front and the spread between the rents.S California sounds like an expensive market to me.  

. - not planning for the eventual transition of properties into a corporation (if deemed by your goals and strategy) from the beginning can have expensive consequences down the road  (as indicated by the investor with whom you spoke recently).

I was wondering if those with Vacation Rentals or those wanting to do vacation rentals, would post an analysis of the ROI, Cash on Cash, etc and a break down of expenses ie Mgt fee, HOA, Utilities, Cleaning, etc.  

Same as learning plumbing for your properties, a bad plumber (or DIY) can cost you more than an expensive plumber.

Duplex in Audubon (both 2br 1 bath):Purchase Price- 110,000ARV- 160,000-180,000Rents Currently- unit 1- 850 Unit 2- 1000Re-preformed rent- 1000 a unitCurrent Monthly rent- 1850Monthly Expenses- 1513.98Monthly Cash Flow- 336.02Cash on Cash ROI- 10.21%Let me know any other numbers you might want to see,William Lees Jr

This took a lot of time and was expensive.

Additionally, when talking "Cash on Cash" and Cap Rates with other investors, is it typically assumed that a Cash analysis on Cash includes the types of expenses I list below?  

It's way to expensive out here for me to buy properties in New York..

So far I've been able to calculate basis, figure out depreciation, and how to segregate expenses, but want to make sure I'm not missing out on something or calculating it wrong.