Tax Attorney's normally deal with more complex tax related issues than a CPA.I would expect a Tax Attorney to be dealing with issues such as1) International Tax Law / Transfer Pricing2) Drafting a Private Letter Ruling(PLR) with the IRS confirming that a tax position they will tax is blessed.3) Confirming or understanding recent tax law changes / updates4) Taxation rules for companies who operate over multiple states.Best of luck

How could I transfer the boat key from one renter to the next?

But transferring the property into the LLC should be pretty straightforward.

They are wondering if he can transfer the house to their names prior to the transition in order to avoid this (and are there time limits?).

Be sure to consider splitting land vs. business ownership at this juncture.

The ownership is extremely knowledgeable on Flood. 

Sounds like it IS a good idea to transfer the title to the LLC name if possible. https://spruce.co/blog/should-...

I know about entity transfer (drop and swap) but that really does not help, School districts have become savvy (or just notorious) and will still increase the taxes.

Is a 50-50 split of ownership common for something like this?

I don’t plan on transferring these properties to an LLC for at least another year so I need the additional liability coverage to protect myself.