Any advice on working with tech employers for placing rentals for 30-day stays / MTRs for corporate housing in the Bay Area?

Update your insurance.If they do, inform your insurance company about the change in your property's use.

It would be good to get an update since some time has past.

It's updated every year and is the best $40 you'll spend as a Landlord.

Should I or does it matter if I update the LLC address?  

Great tools that get updated regularly.I am on the lending side of things and would be happy to hop on a call with you anytime to discuss financial strategies and help answer any questions you may have about nearly any loan product available to help you on your journey, even if they are not products my capital partners offer. 

This is assuming the entity is not a C corporation or has some UBIT blocker involved. 

Updated bathrooms on the first and second floor.

Functionality is what is going to come up when you rent out the unit more so than cosmetic.Cosmetic rehab and updating is what gets tenants into the door and give you a higher value for rent.But Functionality is what keeps your tenants happy and you happy. 

Be competitive in what you list your property for rent for if you want to get it filled quicker (about 10% below market rent or whatever else is up for rent nearby but you still also need to make sure the unit looks good/relatively updated when comparing to the others for rent - I look at what is on Zillow.