First off, welcome to YT! You have come to a great place to look for the perfect little one.
Here is their website:
www.rolinncfarms.com
A few things jump out at me. The have several breeds (not generally a good sign)--Yorkies, Poms, Chis and apprently they are crossing breeds as they have Yorkie-Pom section.
The two adult Yorkies they show as stock (blog section) should have NEVER been bred...and when you can look at a pic and make a statement like that....
When you look at the pics of their kennel...it's nothing but a long row of small cages.
On puppy find, it shows they have 13 pups available, 3 different breeds from at least 4 different litters.
And that is just from the little info they DO give. I would keep looking, but that is just my take on it.