What Do They Look For In Homestudy?

What did they ask at your homestudy? What did they look at in your home? Are cats okay? We have two. Are fish okay? We have quite a few. We live in a trailer house. Will this be a problem? Our yard isn't fenced. Will that be a problem? We aren't rich. Will that be a problem? We aren't perfect by any means. I guess what I want to know is -- how close do we have to try to be to perfect? :)