The Uniform Gift to Minors Act (UGMA) was enacted a simple way for a minor to own securities without requiring the services of an attorney to prepare trust documents or the court appointment of a trustee.

So reading the link can prepare you for what's coming and actually give you some leverage.

They will help you prepare what you need in order to qualify for a loan.

Does anyone have any advice on what else we should have prepared to discuss with them?

I have also been getting all of my finances in order in preparation for my first deal.Austin is challenging due to the fact that it is a great rental market, but it is also a super hot seller's market...tough to get into SFH's at a price point that will cash flow. 

Be prepared to devote lose tens of thousands of dollars, fight with loved ones, lie awake at night, and miss important life events.

If seller financing doesn't solve their problem, then you have to be prepared to use a different strategy. 

I have done everything I can to prepare myself to take the plunge into the world of real estate investing and the time is almost here.

Also what questions might they ask me so I am prepared to answer them?

i wouldn't go by tax values/tax assessments, etc....they're way off in most areas...if the hud appraised it at 30, that's prob what it's worth...btw, it's not hard to add a washer/dryer hook up during rehab....i'd take 1,000/month rent to be all in for 40,000. if you're going hard money, be prepared to refi though.