Estimating Tax Hit on Sale of New Multifamily Development

[Matt B.]

I am curious how others are going about this from an acquisition standpoint.  

I realize most buyers are buying existing, usually value add properties.  And estimating taxes on existing, older assets is pretty straightforward compared to a new project that is not yet complete or stabilized. 

Whats the best way to approach this to ensure you are at least in a tolerable range when estimating the taxes for UW purposes.  

Looking forward to hearing any and all feedback and advice.