The operating agreement would address issues such as profit allocation, voting rights and other obligations. 

I'll address your questions from my perspective in order:First - You sign a lease agreement in addition to the airbnb booking.

It can be harder for people to come up with though... so it can cut both ways.As for rental rate - try going to rentometer.com and put in your rental address and see what it tells you it thinks the rent should be.  

2) I understand that it is illegal to do SMS marketing for random lists from public records + skip tracing, you must have the client's consent before sending... how you address it?

Have a business address.

When you set it up, did you set it up with a static IP address or DHCP (get the IP from the router)?

That could be as high as $14K to $15K not to mention Title fee's, origination fee's and days of interest another $7K to $8K.If you choose a lender or broker and they hit you with lender/broker fee's/points that’s another added cost.My best advice as a Banker is reach out now get a Pre-approval letter up front and give the Bank an idea of what neighborhood or a "mock" address and you can get an actual quote up front to avoid surprises.

You have a duplex which means the 2 sides have different addresses.If I am not mistaken, an ADU would qualify as it doesn't have a separate address from the main house.

You have a different address on insurance or your license.

How do we establish an address to use in Delaware so we can utilize the benefits of a series LLC?