Personally I wouldn't be too concerned about it - from what I've read its only an issue when its inhaled/ingested so exterior siding shouldn't be an issue at all.

It's not optional.This is a good start: https://www.mass.gov/the-massachusetts-lead-lawIt literally takes a child ingesting a chip of lead paint the size of a quarter to cause actual brain damage. 

Involving yourself in forums, blogs, podcasts, and webinars will avail you opportunities to meet engage with members as you ingest informative information.At the bottom of this page is a list with help in it.

Sometimes (but not always) affected by things that they ingested. 

Those who actually need the therapeutic benefits of the chemicals in marijuana can ingest the product in another form.

I'm putting together a web map and will be ingesting this data anyway so the API may be the best way to go.  

I am new to Bigger Pockets and the amazing world of real estate investing.Over the last month, I have been ingesting everything real estate through a fire hose. 

For instance, lead based paint is most dangerous when it's ingested.

This category of liquid used to be called grey water, and is described as having a level of contaminates that may cause illness or discomfort if ingested.

Luckily the dog passed after ingesting some rat poison the dog's owner put out in the yard.