They are dependent upon USA trade and economy.

It is more dependent on that than your experience.

The specifics usually depend on agreements with the tribal government.

The management companies & local investors usually lease places up within 1-2 weeks max (depending on if you want to hold out of higher rents) How would you think about leasing these out? 

It also depends on how much money you have and how you use it.

Some lenders offer creative solutions, like a cross-collateralized loan, where they use your existing equity as security without refinancing the duplex.Another idea is partnering with private lenders or exploring a second-position mortgage, depending on your lender's terms.

It all depends on your specific circumstances and I think getting other's opinions is helpful but what works for YOU?

it depends on your situation. 

It seems simple, but it's not a DIY thing because of technical rules that are different depending on circumstances.Or, you can pay a lawyer to file an ejectment lawsuit, the developer can pay a lawyer to defend the lawsuit and redeem, and the developer will also be responsible for reimbursing your legal fees, plus interest. 

It really depends on where and what you are looking to do.