Instead of worrying about meal prices, lodgings, replacing worn clothing, tending to armor/weapons, and other misc. costs, this campaign will use the “Upkeep” variant from the DMG (p 130).
Should adventurer(s) determine that they wish to spend downtime owning, operating, or maintaining a business, these are the rules associated with such an endeavor.
Owning a Stronghold
Living day to day with reasonable shelter is handled under the Lifestyle rules. Should a group of individuals (re: the players) wish to build a stronghold, this campaign will use the Stronghold Builders Guidebook to handle such an endeavor. All players must agree that they wish to do this and decide as a group how much game time will be attributed to this activity.