ProLease - ProLease helps organizations manage their leased, owned and subleased properties in one integrated system.
Typora - A minimal Markdown reading & writing app.
Yardi Voyager - Voyager is software for managing properties and the people who live there. The software is developed by Yardi, a company founded in 1984 that specializes in property management software. Read more about Yardi Voyager.
StackEdit - Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.
DotLoop - Peoplework, Not paperwork.
MarkText.app - Mark Text is a Markdown editor for Mac, Windows and Linux.