MarketSharp had at one point an integration with Zillow in the lead paint module of a contact record.
This would allow you to click the Zillow link and it would auto fill the lead paint information for you.
Unfortunately Zillow has disconnected the API access needed for this and we are currently working on another solution to have this auto fill the data.
In the meantime you can always access the home information by clicking the Zillow link next to the contact name.
This will get you the information needed to fill out the lead paint section but it will not auto fill it for you until we can find a solution for this.