What I look for in a ORM - mattias-jakobsson.net

In just about every application I build that use a relational database, I also use a orm tool to handle my data access. The reason I do this is to save myself the time it takes to handroll a data access layer in ADO.Net and to eliminate buggs that can come from writing sql queries. I do have a few things that I look for in a professional orm that I think is important.