Some items, like investment securities, were exempted from the beginning, but for the most part it would be very difficult for Congress to exclude all forms of tax free like kind exchanges without having structural consequences to the tax code.It may be possible that the NAR article was saying that real estate professionals may not want to bother with these deals.  

I have sought to get loans in one country to purchase in another but it is very difficult to get aproval for such projects without security in the country of the loan.Any thoughts on leverage regarding investing in multiple countries?

It may also be difficult to get the seller on the phone. 

It's difficult for landlords to lower the rent especially if the price for commodities is gradually increasing.

Might be difficult for folks to print from their phones and such after receiving your e-mail link.  

If interest rates increase, it is more difficult to purchase/ finance a SFH, you have more renters (demand increase), prices increase.

With market rents, coming up with first/last/security deposit can approach $10k in some neighborhoods, which can be a difficult check to write even for professionals.

I chose to venture down the path of a real estate agent because it requires less money to start-up... and it becomes very difficult to qualify for conventional loans without a solid employment or credit history. 

Much more difficult!

However, keep in mind that as you are just starting out, it will be difficult to obtain financing for your business.