I missed one of the calls late last night and called back today, where the elderly lady answered and said she didn't know anything about a rental but the house next door was for rent, which tipped me off they were the ones who called from her cell phone.

Looks like a gamble to me.  

We met up at our townhouse, had a 1~2 hours conversation, that lady practically taught us everything we needed to know to do it ourself!

You can put in some preventive measures like a built-in cleaning lady (monthly) who also acts as your "spy" ;-)My student house was rented for 4 years, so yes when they moved out it was the equivalent of 4 years worth of move-in & move-out by multiple tenants. 

I'm not an expert on Michigan but I'd bet you can still benefit from undervalued areas as a result while staying out of a Detrot gamble. 

I was told by the lady at the license & inspection that I have to pay until the property is sold or the owner has to live at the property.

She detailed how much she would pay on which dates and had a written plan to be current.Since she had been such a great tenant, I decided to gamble.

As you grow and suceed which im sure you will, you'll understand what im saying..When you can buy an old ladys home, she held on to for many years, but falls in love with her experience with your company and she introduces you to her Son who sells you his property...Then he just loves how professionally you handled yourself, so he introduces you to someone at his job, that has 4 properties hes looking to get rid of....And now you were able to wholesale 6 properties from 1 lead....Thats rapport...you'll get it...

Understanding how I'm going to track the success of my marketing efforts is important to me and ensures that I'm not just "gambling" my marketing dollars and hoping that I get lucky.Here are a few notes about what my situation looks like: I've got three lists I'm targetting - each going to a different local phone numberI will mail every 3 weeks with a slightly different letter / postcard each timeMy phone service provider (RingCentral) provides a call logI'm using Podio as my CRMHow are you guys tracking things like response rates, appointments set, deals under contract and conversion rate (direct mail all the way to done deal)?

So there's a little more of a gamble to them.