Set up an irrevocable trust for passing estate to grand kids(it works well) and you can even purchase a combination of cheap insurance polices to cover the estate taxes.

Seller hereby irrevocably instructs Escrow Agent to return the Deposit to Buyer, or to any person or entity designated by Buyer to receive the Deposit, if Buyer elects to cancel this Contract during the Inspection Period and no further written instructions are required for Escrow Agent to release the Deposit to Buyer or to any person or entity designated by Buyer to receive the Deposit.

Those LLC will be owned by a Irrevocable Trust. 

Any trust that is not an irrevocable discretionary trust is entirely useless with respect to asset protection.

Are there any attorneys in Denver who set up real estate trust.

I have a few LLCS which funnel into an Irrevocable Family Trust that holds the current assets.

You almost never see for irrevocable trusts (for various tax reasons). 

I'm thinking that the trust is an irrevocable trust with it's own TIN and filing it's own return. 

I would not use a living trust, revocable or irrevocable, unless you do not intend to refinance in the future.

But let's say you go nuclear and create an irrevocable trust (DON'T DO THIS UNLESS YOU HAVE A GOOD REASON TO).