While some lender will allow statements from other countries and will convert to USD, the path of least resistance here is to have your funds already in the US and create a US based entity to vest on title. 

Partnering up with family that has trust in our track record boosts confidence and allows for continued business.

In light of this, I have been exploring the possibility of pursuing creative finance options, specifically seller finance deals, as a potential means to achieve my goals.

Electing S-Corp taxation for your brokerage LLC #B can significantly reduce self-employment taxes while still allowing rental losses from LLC #A to offset federal and state income taxes.

In today's STR competition, design can "stop the scroll" and allow you to stand out.

Do current tenants have a say in deciding if the landlord will be allowed for this conversion or no? 

If you pursue a degree, select one that provides the skills that allow you to earn a revenue stream once you leave your W2. 

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

A conventional renovation loans will allow you to use preferred contractors, requirements are they must be simply licensed and insured.  

This option can allow your property to cash flow at a higher rate because the monthly payment would be cheaper than if you were to have a conventional loan; then once rates come back down you can decide to refinance on to the traditional 30 year fixed.They require much less for pre-approval and look more into the asset that you're looking to purchase than they do things like credit score.I hope this helps!