I did that on my first park purchase in December. The broker was frightened the seller would kill the deal by disclosing too much or saying the wrong thing. She was very outspoken and always says what's on her mind.
We met and sat for hours just chatting. I learned quite a bit about the park, the tenants and all the trouble she had with the park. I knew going in, nothing is perfect, so I appreciated the time we spent together.
I'd suggest setting up time to meet with them and include the broker. I do recommend getting to know the seller, it can definitely help with a smooth transition.