Documentation should include details regarding the business purpose, total use of the property, specific expenditures, business usage, and dates of expenditures and use.In the absence of such documentation, deductions are vulnerable to disallowance, leading to potential penalties and additional tax liabilities.

Love your strategy and how your tight on your criteria.

If your lease doesn't address this specifically, don't think you can keep their entire deposit.Put the rental back on the market.

Reading comments and your specific feedback, it looks like i should have gone for a bigger investment property or properties with DP instead of all cash.

@Manuel Mungaray What's the question specifically? 

As a option, instead of a commission structure, you can put them on a bonus plan and provide payouts based on a set of criteria. 

When you consider the time value of your money, these are huge advantages.Just make sure you have solid processes and conservative lending criteria.

What would matter is that you specifically did NOT have the local authority approve it. 

I was able to get a good deal on the house I was interested in due to this fact but it’s a half done flip/reno so there’s a lot of work halfway started throughout the house. 2 areas in particular I’m unsure of what to do with is the walls and attic, any suggestions or ideas of how you would be finish would be greatly appreciated (adding links to specific products are a bonus lol)!

I do spend time there @Chris Watson, but I wrote a specific algorithm a years ago the scrubs the internet for data I input.