From what I can tell, the first listing is free and subsequent listings are $9.99 per week.   

However, some of the subsequent properties that we bought cashflow about $300 a month.

Trust me when I say this you need to be firm in your biz and stick by whatever rules you have made, I am the "good cop" in our biz and I usually have pity on some that tend to need housing but cannot afford the property, guess what when you let some rules slide you have made up with this forum from folks that have been there and done that, you will put yourself in a bad predicament more often than not.  

@Nicholas MoffettYour original post and almost all subsequent posts were about smoke and lawsuits, especially lawsuits.  

We have been understanding about this and let it slide even though we feel as though they are not holding up their side of the lease.Now they tell us that they have moved out of the house completely, and they want us to meet today to sign off on the condition of the home.  

@John TeachoutFrom what I can tell, just the first one is free and subsequent listings cost - at least that's been my experience.

The bed was beautiful to look at, but that bark didn't feel good on the back of the thighs when sliding in and out of bed.

There was a 21 year old SGT leading the brief and the subsequent movement. 

(had newspaper ads to prove it) It was subsequently tax assessed at significantly more than what I paid for it (paid ask) and I contested it all the way to the state tax tribunal and lost.

After that, you can collect the subsequent month's rent however your lease allows (personal check, electronic transfer, etc).