If the numbers make sense (equity, low payment or great terms) you may want to stay in the middle of the transaction and collect a nice monthly cash flow and a nice payday when your new buyer gets a loan and cashes you out. 

A good speculator doesn't gamble, they plan to the most known probable outcome, that isn't gambling where you can not manipulate the outcome.You certainly can invest for appreciation and in a good market the payday is often better than the cash flow. 

Therefore the ONLY reason to recommend negative gearing is the HOPE of capital appreciation that will occur in the future, which would compensate you for having less money to spend EVERY pay day than if you hadn't made the purchase!

I will be interested to see how this transcends over to real estate deals underwritten in alignment with Dodd Frank guidelines, which were enacted after these payday loans were made."

So for example if you were in you 70s and one year decided to sell your business and earned a big payday, with a Roth you could simply not withdraw that year and not have to pay the top marginal tax rate, but with a traditional IRA/401k you'd have to take that wothdrawal and pay the higher tax rate. 

No lawyer is going to want to spend a lot of time and effort to go after your personal assets for a small payday.  

I just paid out a tenant last week and she was happy to get a small payday.

I really like the idea of a quick payday, however the problem with rehabbing is that it is a J-O-B and also very speculative.

After you have 6 months of cash saved in emergency funds that is.I automatically deduct $400 every payday into my Schwab account and buy the in-house S&P 500 index, with no fee.  

Lenders we pay will be looking for their extra payday too on fixed monthly payments.