Walk Score: https://www.walkscore.com/
National Sex Offender Registry: https://www.familywatchdog.us/
Rental Property Deductions: https://www.millionacres.com/taxes/real-estate-tax-deductions/your-guide-rental-property-deductions/
FAQ for 1031 Tax Deferred Exchanges: https://www.1031exchange.com/faq/
Maryland
Maryland Department of Assessments and Taxation: https://sdat.dat.maryland.gov/RealProperty/Pages/default.aspx
Maryland Smoke Alarm Law: https://www.montgomerycountymd.gov/mcfrs-info/resources/files/laws/smokealarmmatrix_2013.pdf
Maryland Security Deposit interest calculator: https://dhcd.maryland.gov/Pages/RSDCalculator/Default.aspx
Montgomery County School Assignment Location Tool: https://gis.mcpsmd.org/SchoolAssignmentTool2/Index.xhtml
Montgomery County How to Dispose of Bulk Trash: https://www2.montgomerycountymd.gov/DepHowDoI/material.aspx?tag=bulk-trash&material_key=41
Montgomery Village Community Map: https://www.montgomeryvillage.com/community-map
Washington, D.C.
DC Construction Codes: https://dcra.dc.gov/sites/default/files/dc/sites/dcra/publication/attachments/DCMR%2012_ConstructionCodes_2013.pdf
DC Atlas Plus: http://atlasplus.dcgis.dc.gov/
Washington DC School Boundaries: https://dcps.dc.gov/boundaries
Virginia
Virginia Security Deposit Basics: https://www.thebalancesmb.com/virginia-security-deposit-law-2125094
Fairfax County School Locator: http://boundary.fcps.edu/boundary/
Alexandria School Assignment Locator: https://croppermap.com/alexandria/
Arlington County School Assignment Locator: https://gis.arlingtonva.us/Html5Viewer/Index.html