MIAMI--The ultra high wealth and wealthy foreign investor class has not slowed down on their investment portfolio's in Miami. At least not from what Keith Marks, a newly minted director at Douglas Elliman, can see.

"Pre-construction sales are at an all time high with our South American clients and we are seeing a high turnover of inventory," Marks tells GlobeSt.com. "The form of turnover we are seeing is foreign investors selling properties held for more than several years and taking advantage of the rising dollar to increase their profit margin on investment when converted back to their own currency."

As an example, he says, a property purchased several years ago in Miami would have a dollar to Brazilian real conversion value of about one dollar to 1.5 real. When sold in today's market the same conversion is approximately one dollar to 3.85 real.