They did mention getting a co-sign from their father.

My father (although not a license contractor) has built my home and my uncle is a licensed contractor.

My father is looking into doing this in a cabin they recently purchased but was asking me about the quality/validity of using this company rather than purchasing new to update the bathroom. 

It may seem annoying, but it'll be a hell of a lot less annoying then getting sued because your tenants fat father in law fell through the floor.

Here is a link to an interview I had with my father. 

My father has been involved in commercial real estate for about 40 years and has shared some of his knowledge with me. 

My parents got divorced when I was in the 5th grade but he kept me in his life and tried to be a regular father that made sure I did certain things like going to and graduating from college. 

They claim her mother who helps babysit also experience these symptoms and her father who was visiting from California also experiencing symptoms. 

Thanks @Manon Sheiman , it's my father in law, and I'd make sure he'd be taken care of.

he's been involved in commercial real estate for over 30 years and his father was before him.