Lenders won't require U.S. credit history however may require a foreign national credit report, and 2 trade lines opened and active for the past 2 years.

We may encounter legal issues that require immediate action which may then result in cases where investment requests are rejected.

Create a simple spreadsheet or written list to compare the features of each and identify the ones that align with your requirements.

What are your requirements? 

Software does have its advantages but it does require some set up and its another thing to keep track of, if you scale then you will need it eventually and it might be worth getting it upfront.  

As a result, the property became more desirable and attracted more high-quality traveling medical professionals.

What are the requirements for the vetting process? 

Appfolio typically requires you to have 50+ units to on-board last time I checked.

It is really difficult to get a good deal from a bank, unless you buy with cash, in a quick transaction, don't require an inspection and buy in bulk.

He seems to suggest starting with a property that requires light to moderate repairs, reducing the risk associated with the investment.