Find a Lead-Safe Certified Contractor
If lead paint will be disturbed, you will want to hire a contractor who will follow work safe practices.
Find a lead-safe certified contractor or renovator in your area.
EPA: https://cfpub.epa.gov/flpp/pub/index.cfm?do=main.firmSearch
DC: http://www.leadsafelist.com/renovators/D-C/
DC: https://doee.dc.gov/publication/certified-lead-based-paint-abatement-renovation-companies
MD: http://www.leadsafelist.com/renovators/Maryland/
MD: https://mde.maryland.gov/programs/LAND/LeadPoisoningPrevention/Pages/LeadContractors.aspx?all=1
VA: http://www.leadsafelist.com/renovators/Virginia/