Since the DADU is on the same property as my primary residence, can I place the DADU in an LLC, separate from my primary residence, to protect my personal assets from liability?

Then visit the lender website and see if the have an REO section or try to find a person's name.

Basic recommendations- Deed of Trust-Personal Guarantee-Promissory note-JV agreement (to protect the lender from violating usury laws)-clear late fee schedule, cure period agreement-cross collateral if the subject property doesn't safely cover you with enough equity

In a better market you might be able to use those things to get a better deal on commercial insurance but in the current market there won't be flexibility.On personal policies/1-4 unit rental dwelling policies there won't be any flexibility whatsoever unless it's something the company already has built into their guidelines/pricing.

My worry with leaving the local agency is the personal attention that guests receive when they call.

These are all private so someone had to include them, and then that person can pursue you for failure to comply.

I would hire another person that has construction and real estate background.Take your  annual Salary. 

You don't get that from a random person you don't know well.

If I book a room that will work for two people (i.e. with two beds) but only book for one person would we be able to change the reservation later to be able to share the room?

See here: https://store.biggerpockets.com/Find and connect with other BP members that are in your area: https://www.biggerpockets.com/search/usersSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: https://www.biggerpockets.com/podcastIf you wish to tag someone in the conversation on the forum, type @ followed by their name and then select the name of that person which should appear below the comments box.