Question about a client buying and flipping houses. Client is a...

Question about a client buying and flipping houses. Client is a electrician by trade and has a GL policy through my agency for that. He is getting into the business of buying and flipping houses and is asking for insurance advice. I have never trekked into this arena before so I was wondering if there is anything I should know. The guy is buying the house under his newly formed LLC and they he is acting as the General Contractor,