1st Round Summer Associate Interview in RE PE

Hi all, I'm a first year MBA Candidate and just found out that I'll be interviewing in early January for a summer associate program in real estate PE at a major firm. The firm doesn't recruit at my school and I essentially networked my way to this point. With that being said, I have very little insight into what I can expect from the interview. I know that it will be broken down to two rounds in January with final decisions rendered at the end of the month. As some background, I have a few years under my belt at a real estate investment management boutique firm with roughly $1B in AUM - so I know the world fairly well but I have never interviewed at a major firm before.

Can anyone speak to the depth that RE PE interviews delve into? How technical do they get? What would be a decent case study handed out during an interview?

Any comments welcome.

Thanks