The city just passed an $800 million dollar bond for the stadium that you will help pay for even if you don't use the stadium.

A lot is opinion based, but the data should point to a strengthening market, with low new construction deliveries. 

If it must be treated as cash out refi, can investing in stocks/bonds allow the interest to be deducted?  

If you have one of the major financial institutions (Fidelity, Schwab, Merryl Lynch, Wells Fargo, etc.) setup your plan then they as custodian will limit your investment choices to that of their offerings, usually stocks, mutual funds and bonds.

The Series Classification of assets has been ruled on a long time before the Series LLC existed and further supports and strengthens it since the legal principle was established before its existence. the position taken in the investment fund private letter rulings and the principle of Rev.

I had this issue with a bond for deed property here in New Orleans. 

Many alternatives exist (interest from savings accounts and bonds, dividends from publicly-traded and privately-owned businesses, rents from real estate, royalties from intellectual property).

How would you compare the risk rewards matrix of these versus lets investing in the stock market riskier assets (leveraged ETFs or High Yield, junk bonds etc.)?

Its interesting how they follow close to sharks and other large animals, this bond is symbiotic(they both benefit).

Or what about the fact that I can go and buy almost any stock, stock option, high risk bonds, or other similar investments which are HIGHLY RISKY if one does not understand them, but not with a Real Estate Syndication that has a 5+ year track record of paying out preferred returns without fail and has a long list of satisfied investors?