There are several great resources for data. 

Does anyone have a recommendation of a national collection agency that is effective?

Collection agencies cannot report to credit bureau if the  landlord is a private landlord.

Could VRBO users from Michigan provide some clarity about the topic of sales tax/lodging tax collection and payment to the state.

It’s especially useful for prospecting foreclosures or expired listings.TruePeopleSearch (Free): If you’re working on a budget, this is a surprisingly helpful resource for quick lookups.That said, any platform can work if you use it consistently—it’s all about staying persistent.

@Adam BartomeoAny recommendations for the collection agency?

I've never heard of anyone collecting but I'm sure it's worth a try.

Any good recommendations for the collection agency or any way to get the money back from the tenant or any way to report it to the credit bureau?

Visit RestoreFMB.com for practical resources and tools that can be replicated in other communities to help LA through this process.No one rebuilds alone.

I want to preface this by saying I'm an absolute newbie when it comes to real estate investing, but the more books and resources I consume, the more I find myself gravitating towards commercial real estate, specifically hotels!