Here are some helpful links: State Department of Assessments and Taxation www.dat.state.md.us/ Maryland Department of the Environment - Property Owner Page www.mde.state.md.us/Programs/LandPrograms/LeadCoordination/rentalOwners/index.asp Baltimore City Housing (Section 8) www.baltimorehousing.org BNI (Baltimore Neighborhoods Inc.) www.bni-maryland.org/ Mr. Landlord www.mrlandlord.com Mapquest www.mapquest.com Baltimore City Water Bill Lookup www.cityservices.baltimorecity.gov/water/ Baltimore City Online Bill Payment www.ci.baltimore.md.us/government/finance/payments.php