This is the point where the bundle of rights you have as the lessor/optioner of the property are so comprehensive and strong that in essence the ownership/control of the property has already transferred to you.The application of risk of loss passing is seen more in land contracts and lease to deed situations but given that option contracts can look very differently you'll want to pass it by your QI first.

If so, how accurate,comprehensive, and of course reliable, are they?

@Mike Easton I would recommend "THE SELF DIRECTED IRA HANDBOOK" by @Mat Sorensen, which is comprehensive guide for self-directed investors.

First and foremost, I’ve created a comprehensive checklist that outlines every task involved in a thorough cleaning. 

I found bigger pockets by doing a google search on "best real estate books", which resulted in a comprehensive list that I've recently used. 

Michael- regrading professional management...you have to be licensed (in Ohio you have to be a d*mned real estate broker)...this would be you advertising comprehensive management for someone- making all tenant-acceptance , collecting money for them, depositing it in your account, subtracting fees and repairs and mailing the owner a check a few times a year.You are allowed to manage your own properties (duh) and you are allowed to be hired by me to run my properties...the major difference is that you would be working under MY tenant criteria, depositing in my accounts, and I would be mailing you payments.There is nothing stopping you from establishing the same relationship with owners in your area.

The maximum can be exceeded up to 45% if the borrower meets the credit score and reserve requirements reflected in the Eligibility Matrix.For loan casefiles underwritten through DU, the maximum allowable DTI ratio is 50%.See B3-1-01, Comprehensive Risk Assessment for information about the DTI.

Thank you very much for the very comprehensive answer.

Nice to be part of such a comprehensive real estate forum.I hope I can contribute!

Their reports are detailed and comprehensive including credit score, rental history, criminal record, income verification, etc.