Here's a suggested system:123 Sample Street     - Property          - Receipts          - Invoices          - Photos and Video          - Other documents     - Tenants          - 2015-01-15 Move in - John and Jane Smith          - 2016-01-15 Move out - John and Jane Smith          - 2016-02-01 Move in - Jack Squat     Every file should be named with "DATE - PURPOSE - LOCATION - NAME" which will enable you to find things using the search feature.

You should go through the exercise of building your own and understanding every number and how the formulas work. 

Something robust and complex enough to house all the data, but also simple enough to be able to draw the key insights as to where the sample property stands relative to the market place and how much rents have the potential to rise.

Have a sample wholesaler contract , then show them yours .

I know it's not exactly a large sample size and I used her as a PM before working through her on purchases but it does have several advantages:1.)

If you want some samples, I have some distribution and fee samples I have been providing people.

I decided to exercise that right and emailed the seller stating that neither myself, nor my investors were comfortable moving forward with the deal given that Pizza Hut could not confirm their willingness to renew the lease.7.

Your escrow will be returned to you (assuming no unusual factors) if your financing falls through or if you exercise your right to cancel the contract "for any reason" based on your home inspection. 

Does anyone have a sample MI assignment of Mortgage you could share?  

The IRS describes 6 different methodologies: detailed engineering from actual cost records, detailed engineering using cost estimation, survey or letter, residual estimation, sampling or modeling and rule of thumb.