Sales Tax Breaks: Construction materials and services may be subject to lower tribal sales taxes—or exempt altogether.4.

I know I already mentioned this, but @Mordy Chaimovitz...If you can get by with lower cash flow and invest for the long-term generational wealth (aka appreciation) in nice neighborhoods, that is the way to go, but it's tough to get by at times -- at least it is for me.Just know everyone's situation is different, and you should do what is best for your specific circumstances!

Not sure how close you are to the partner but you may want to work with someone else for these kinds of rehab projects in the future. 

You would arguably be better off buying a CD at a slightly lower yield with almost no risk, time, or stress requirements. 

There a handful that can do lower  than 620 at 50% LTV, however the rate will be very high My current score is around 670-680.

As far as what to tell them, you simply say that you're listing it for $1,700/month and are not willing to lower the rate.

The price was lower than anyone else offered.

Definitely no way to do a full gut rehab or close to that for $50k today.

Not to mention staff, I’d check on the number required to stay up to ratio throughout the day, night ratio is likely lower than day ratio.

So, the actual increase to market rent will be much lower.