These extra payments will only impact the finances for the duration of the mortgage, which is five years.Any assistance in analyzing and understanding this would be greatly appreciated.

How many of these units would be required to be life impacting in a positive way?

LTV will also have a heavy impact on your rate.

However, the time it was rented (known as "non-qualified use") can impact the amount of gain you can exclude.

Curious how you all would think a resort + casino going into a STR market will go and the impact?

I’ll begin by saying I have no objective data to support my opinion, but I do have some subjective data, so take it for what it’s worth.I think the trouble is pretty widespread, particularly among newer syndicators (defining that by less than 10 years in the business, so never having survived an adverse cycle).  

When the unit is vacant is an ideal time to address issues because its easy to work on and isn't impacting a tenant.

What's being ignored is that when a sponsor has a property or properties that are foreclosed on, it can have an impact on their remaining portfolio even if those properties remain solvent.

Raising rents even $10 per unit has a large impact on the analysis. 

And it also then showed the average revenue impact of each amenity.