I was relentlessly aggressive and I took advantage of negative market headlines to make some of my most aggressive offers, and often they were accepted.At the same time, I had to market myself as an investor and project manager.

Banks will (usually) only lend up 80% of the value of a home (if there was no existing mortgage in place).

I am usually on that site every day.  

The perception of desperation, failure to acknowledge personal space etc. could be some of the negatives of such an approach. 

A risk with this transaction is lower than anticipated rent ($650 is higher than any of our other units, but is being achieved by many other recently-listed units owned by others), but even at $600/mo cash flow is only slightly negative during the loan period and ROI and CoC are still 40% and 48%, respectively.  

I was under the impression because I have that sum of money tied up, it can be negatively factored into the cash flow because of opportunity cost?

I usually aviod or assign these but in this case I would consider it for LO and this is what I would do:When thecurrent lease runs out inform the tenant of the new agreement which requries them to chose to switch to the new lease option format or move out.

I think this is twofold, one because the prices have been driven very high (and I'm late to the party) and the FHA payments usually are also higher (including insurance, etc.), and two because it's difficult to get the FHA loan on a property that is 70-80% and needs repairs, so nothing from my current wholesaler contacts would work. 

After that there is usually a featured speaker on an important topic.

Down payments however, are usually 25-30% depending on the project and lender you are working with.