So far I have 1099, Advertising & Marketing, bank charges & Fees, Capital Expenses (for remodels) Car & Truck, Contractor, depreciation, donations, Employee benefits, insurance, interest paid, inventory assets, job supplies, legal &professional services, loans/points, meals & entertainment, office expenses, Rent & lease, repairs & maintenance, salaries & wages, taxes & licenses travel, utilities.

Now, I've been busy obtaining Lis Pendens lists from my local town/city hall (which is like an hour from me...) and did some research on the properties I've obtained.

You need to think of your house as an asset and your house as a business partner.

People like Dave Ramsay would say to just save up and buy a home with cash when you get enough.Personally, I am more comfortable with mortgage debt vs credit card or car debt because the debt is in an appreciating asset & you owe less than what the asset is worth.This allows you to sell the property and pay off the debt if you can't afford the payments.

Here is the IRS publication regarding residential rental property which also defines when the asset is considered "placed in service" and with examples too. 

The assets they can go after is capped by what the LLC owns not what YOU own.Now generally speaking, is the LLC a good solution or not, it's debatable.

I have a buyer whos lender wants a copy of the HUD-1 on a house that was sold in 2003. They don't recall the agent or the title company because it was so long ago. Does anyone know how to get this, and why they would ...

I am planning to create an LLC with the Solo 401k trust as the member to provide liability protection when I purchase real estate and some separation of assets within the 401k. 

That's probably your best bet for the refinance.Otherwise, there are long-term asset-based lenders as well, but they're going to be a bit more expensive.

They then use these funds to invest into whatever asset they choose.