Just fill out the form, and click send.  Remember to include your phone number, because it's much easier and faster to speak with someone over the phone when questions arise. 

Expect to hear back quickly.

Thank you!

Or you can return to craigslist and clickity click around some more. That is, if you like that sort of thing...

(noun): A stressful environment; named for where it is usually found. Experienced frequently while online apartment shopping.  Most notably defined by excessive emailing with strangers, exorbitant clicking, and getting nowhere.