With sufficient income, you get the bank's attention and qualify for loans. 

Sufficient volume - cover enough ground so you don't need to ask yourself if your lists are accurate, or if these sellers are motivated enough.

Run your numbersintelligently – and make sure you have sufficient ready reservesbefore you get fancy in your maths.

I had several instances where the cycle of receiving a payment only to find out later it was a Non Sufficient Funds payment was taking 10 days to cycle back.

For example, if you can show the debt was paid off and the lender simply failed to record a release or if you can show a statute of limitations has barred the enforcement of the debt as a lien on the property would be a basis for the suit but simply asking the court for relief because you didn't know the prior mtg was there when you bought the property and you can't sell or borrow against the property probably will not be sufficient to get the court to quiet the title and a good attorney probably wouldn't waste your money filing the suit.

You need to get into a deal at a sufficiently cheap price,  renovate the property,  get a high ARV,  refinance at a low enough rate for you to cashflow after you pull the money out. 

The reason that a Quit Claim deed may be sufficient to transfer your interest into your entity (as opposed to using a Warranty or Grant Deed) is that you don't need to assure yourself marketable title; you already have that.You could see a lengthy discussion on this thread about strategies and tactics concerning methods of holding title.

The custodian of my IRA said that the Operating Agreement I got for the LLC - through an online legal provider was not sufficient and required an ERISA / LLC attorney.  

This is known as the self-sufficiency rule.

If so, it will serve to "cull the herd" down to those of sufficient character to do the right thing, even (especially) when it's the most difficult.Any preference on the smokes?