Inactivity Timers

Realtor 7 days
Camps 14-30 days (camp type dependant) 
Instance 30 days
Gov Markets 7 days
Normal Markets 7 days (has 30 days in hold status before deletion)
For realtor properties you can have them put on hold if needed via a realtor. And you can put a market in offline mode to keep it for up to 90 days if it's not a Gov market.