Then I aim to do 2-3 flips at a time. 

It is not unusual for the auction companies to deem the properties as occupied as they avoid liability and costs by using this policy.  

A title transfer is generally all that NEEDS to be done (quit claim deed) but you should check to make sure he has clear title even though he has it in hand, no liens etc, make sure the title is recorded properly, and get a title insurance policy.

Title insurance policies are prepared and sent to the new lender and to you.

When a policy is based on Replacement Cost (RC), the companies generally will not pay the Replacement cost until the work is completed. 

In truth, because it's in a flood zone, the cost of insurance for the $250k is high and bumping to $290k required me to get an additional policy to cover the $40k difference between the maximum $250k flood and the requested amount. 

*Just my interpretation of the current laws and policies, YMMV.

If 1,000 doors is still your goal, aim for five or ten 100 to 200 unit complexes. 

No LLC but looking to get extra liability insurance on my own home policy as well as a renters policy on the home to cover my six.

I think many people voted for change rather than approving of proposed policies.