I started out only interested in wholesaling, but after listening to the podcasts, attending a real estate investor meet up and reading anything I can get my hands on (including @Brandon Turner's real estate investing with little or no money down book), I realize there are also many opportunities made possible by creative financing.

What is included in that cost?  

You will also need to account for projected capex, vacancy and property management including leaseup.

And that includes a sale in year 5. 

The agreement between the Seller and Agent may include getting paid the commission upon the sale of the property, regardless of what your offer states.  

The list will include the mailing address of the owner I believe. 

As deals comes in, if they don't meet your investment criteria, which includes the market, let them know.

My one and only experience with Sharestates was with a portfolio loan that included six properties.

In general things which qualify as origination indebtedness include money used to acquire, build, or substantially improve the primary residence that secures the loan.

My tax man (CPA) did not assert that I need to include the triplex inside the S Corp... but, when I asked, he said I COULD put it in there if I wanted to.