.- Logically, there really is no additional security provided with both keyed doorknob & deadbolt, but a deadbolt is more secure than a keyed doorknob.- Since you need a key to lock a deadbolt when you leave the premises, tenant's can't lock their key(s) in the home and then pester us to come let them back in.--- Tenants can still lose their keys outside their home:(

If your doing an FHA and plan to stay in one side you have to figure out what that would benefit you.

These are professionals with additional training and a stricter code of ethics.

My best understanding from talking to reps is they have one local employee (in addition to vendors like cleaners, landscapers...) per 10 listings/properties. 

An example of that is tenant must pay for additional electric over flat fee / flat limit since now there is 2 occupants in the home instead of originally one.

Additionally, take some time to drive around your neighborhood and gather information on recently sold properties within a mile radius.

If you do call them best case scenario you get the listing, sell their home and end up with some additional buyer clients that did not end up buying this particular house.

One of the side benefits is that I can avoid the whole draw/inspection process (not overall inspection, just the ones tied to the draws) and don't have to worry about draw fees.

Does anyone know of a calculator where I can plug in the additional yearly pay down along with the appreciation rate of my area? 

These are professionals with additional training and a stricter code of ethics.