I have bought several of these.  

It is always good to have several resources for each position on your real estate team.

I will send you a msgAbout the assignment, I'm pretty sure I'm right a bout the "Selling" of the contract as I've been reading it about it here for several months that investors put a  house under contract for lease with on option and then they put the option contract for sale, maybe is a new strategy or will that not work?

If you do not plan on selling at least a $500,000 a year or buying/selling several properties a year, it would not be beneficial to you. 

For example, I see you're using 5% for several of your expenses, but what is that based on?

She has been transferred to a new living situation due to health reasons and can no longer pay both her mortgage and the monthly rent at the new place.

It will hold up well to renters and look good several years from now when you go to sell. 

To do so would violate IRS rules and result in severe tax penalties.

For what its worth, several close friends of mine who were single parents had roommates at one time or another here in California.

Several of my clients focus in those areas because Dallas has gotten too pricey.