Note ROI Calculator - Expenses to Consider

[Michael Rosenson]

I am putting together a Note ROI Calculator for myself (since I know better than to go asking for one :) ) and wanted to seek some input for what expenses I should be considering. I currently have two expense categories: Guaranteed Expenses (ex. Servicer Costs, Income Taxes), and Potential Expenses (ex. Expenses incurred while going through a workout process like taxes, insurance, etc.).

Two questions for you all:

1) What expenses other than the examples I gave do you think I should be including/considering?

2) Do you agree or disagree with my decision to split up these expense types?  And why?

As always, thanks for the insights!

Michael