Too many people involved to do a relatively simple transaction.

This is only one area of real estate that should be addressed, and it typically involves premises liability/property management type claims.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Seems like a great way for rehaber to make the financials look any way they want.I can think of a few technologies that might help track income and expenses across projects that don't involve saving pieces of paper / invoices / pdfs :)  

If looking to scale flips and create systems around it to minimize your time and involvement, I'd highly recommend putting a team in place that can handle the day to day operations. 

After all if you get the deal done, you are creating more opportunity for everyone involved!

To Mike's point, it can also harm your ability to move on with a new partner who probably will not be thrilled to learn that you're still financially involved with your ex... 

What would you recommend to someone who wants to get involved? 

It's a tough situation for all parties involved.

Renewal shouldn't involve the agent.