Given that I now have added risk of having the tenant forever, my screening requirements got tighter (less people will qualify) and my rent at every unit goes up to compensate for the added risk.

If you're thinking of turning the shed into its own unit, it would require some serious upgrades—like adding a separate electrical panel, sewer, and water connections.

ADUs can provide additional rental income, which can help offset mortgage payments or other expenses.Extend your homeowner's insurance to cover the ADU.Be prepared for potential increases in property taxes due to the added living space.Given that your property is not in a dense urban area, make sure to check specific local regulations as they may differ from city regulations.

Could you have not added amenities to make yourself more competitive and increase your occupancy and nightly Rate?

If you purchase more than you sell then you are adding additional depreciable basis. 

Since I started managing I have tripled the business income due to adding additional properties. 

For example as I was wondering, you added the property is $1.7mm.  

And as Chris points out, I could see a series of added expenses being needed.  

Thank you again, I like adding to my arsenal! 

I have 2 tickets for a SUPERIOR DELUXE GARDEN VIEW - (2) DOUBLE BEDS room with an additional day added on.