dirty rushing for sorority recruitment?

and also, is there any chance for someone who doesnt know any sisters to get recruited into the sororities that do dirty rushing?

Due to the massive amount of groups and activities on campus, it is difficult for freshmen not to meet and hang out with upperclassmen who are in sororities. That being said, there are certain sororities who put in a lot of effort to invite freshmen to events; I'm sure all sororities do this on some level. On paper, yes: you can be recruited into these sororities without dirty rushing. If every sorority knew who they were going to take already, there would be no point to recruitment! It's a mutual selection process and each sorority has different values and things they look for in new sisters. It all really depends on a lot of factors, but the short answer is yes. Try not to worry about it and just be yourself! Try to get a feel for which sororities encourage you to be yourself, and which ones you are most comfortable with.