You would use Form 3115 (Application for Change in Accounting Method) to change your depreciation method.

Research crime rates and choose areas with a good reputation.Amenities: Look for areas with access to amenities such as grocery stores, coffee shops, gyms, and entertainment options.

But I haven’t identified the properties yet, which lenders usually want to see through a formal application. 

I doubt they would accept a DIY "fluff", look how cool, 3D app that spits out pictures that anyone can download from the App store.

I got an application with great credentials.

The local store may have a limited selection but you can find more sizes and options on their website.The tenant may very well trash them, but they are inexpensive and can easily be replaced with the deposit.

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This brings into question everything he's told you on his rental application.  

In this case, the reclassification resulted in a significant first-year deduction under applicable bonus depreciation rates.

(Obviously only applicable in states that have income tax).