But I do need to be prepared with interviewing backup cleaners if things don't work out.

Forced PCS’s 2x and now preparing for separation like you.  

I have recently thought about doing this myself for a few reasons, but I can say that 2 years ago, while the general RE market was so hot that flipping was a cash machine, it just wasn't a time in my journey that I would have been prepared to take it on.Other than that, just keep doing what you have had them start.

What are some other ways I can prepare myself?

Yes to both...best to be at or above competition in terms of finishes or sell to someone that will properly prepare the house. 

I have bought many pre foreclosures, I focus on underwriting and preparation.

Either way you will be treated with respect...prepare a list of questions to ask when they call,and ask for an appointment.

I only use leases prepared by my attorneys in the 2 states we have rentals...the attorneys will be defending them in an eviction, and you want to make sure the terms are legal and up to date.

Get married or be prepared to own it with her parents.

Therefore, be prepared to work and invest more time and money than you initially expect.Two biggest advice to shell out are know your numbers and all the auxiliary costs besides the obvious purchase and rehab.