They are exceedingly rare, thus very expensive, but I believe they represent an excellent long term steady income and store of value.  

You looked past a red flag right at the outset:"When application was made tenant was I am not going to to have my puppy with me so do not need pet fee or application"Total red flag.

I have had great success with Zillow Rental Manager which is free and posts to Trulia and Hotpads in one go PLUS their application fee is super cheap.

Are you looking at the maintenance/repair costs of the homes once in place, W/S/G costs. septic expense if applicable? 

REPSTracker on the App Store

Did you give her written permission to store personal items outside in a common area?

@Replies will not be posted.Note: To link your Facebook updates to Twitter, use this application on Facebook: https://www.facebook.com/twitter.To connect your Twitter account to a Facebook page: If you have a Facebook Fan Page, or are the admin of one, you can post Tweets and Retweets from your Twitter account to your Facebook Page.Follow the steps above to connect to your Facebook profile.If you have not already done so, visit your Apps settings and grant Twitter the “manage pages” permission for your Facebook profile.In your Apps settings, Select the page you'd like to connect to.When prompted, click to allow permission to post to the selected Facebook page.To share photos from Instagram to Facebook:IPhone Go to your profile and then tapTap Linked AccountsTap Facebook and then link your accounts by providing your Facebook login infoAndroidGo to your profile and then tapTap Linked AccountsTap Facebook and then link your accounts by providing your Facebook login infoAndroid Tap and then tap SettingsSwipe down to Preferences and then tap Share SettingsTap Facebook and then link your accounts by providing your Facebook login infoNow when you take a photo or video on Instagram, you'll have the option to share it on Facebook from the same screen where you add a caption.You can also share from Instagram to a Facebook Page you manage.To link your Instagram and Twitter account:IPhone Go to the "Settings" app on your device.

You can go as low as 2.5x in some cases but NJ tends to produce enough traffic/applicants where 3x should be minimum unless property is over priced.

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.

If you need to get it rented fast, a great property manager would list the home for $2100 (below market) and get several quality applicants competing against each other to drive the price up to the max so you don't risk vacancy by starting out too high and gradually reducing to find the sweet spot.