Which companies do you work with for turn key or new properties? 

@Amber Stout It is important to note 100% bonus depreciation only applies to assets (building components and site work/improvements) with a class life of 20 years or less, not 27.5-, 31-, or 39-year assets (structural components) such as roofs, HVAC, fire protection and alarm, etc.

I think at one point there was mention of it being also retroactive, but it doesn't look like it will be that way.I think they key thing is finding the right way to use it.

Quote from @Nick Pokorny: We have a newly lunched STR in the Florida Keys!

The building components and systems that make up the building are the ingredients. 

I can't speak for the Martel Turnkey platform specifically, but  wanted to share my take on the turn key model more generally. 

Hey all, 
Just wondered if anyone could help me out. I routinely come across SFH - Turnkey packages in midwest (Indiana/Kentucky) and have hard time finding big enough buyers to buy them. I'm trying to find larger fu...

And you're right that since the property wasn’t placed in service until August 1, most of those pre-rental expenses (like renovations and improvements) are considered capital improvements and get added to your basis.But under Trump's new tax bill, certain components of your renovation (like appliances, light fixtures, and even some flooring or cabinetry) may qualify for bonus depreciation if they fall into a 5-, 7-, or 15-year property category under IRS rules. 

But the Tenant screening i tried was very unimpressive, missed key information.  

That's the key component that is usually missing when I hear other entrepreneurs/investors say they don't like QBO.Something else to keep in mind is your entity structure and how your entities file tax returns.