You can also gather  evictions and unpaid bills  on your credit history  as well as a number of Court appearances when the landlord sue you for non-payment. posted by @Benjamin Vail:What is easier to walk away from and loose:1.

From there I would gather their name, number, email, price range.

If your underwriting is accurate you may be able to get financing. 

Those build numbers are fairly accurate.

The first is: not knowing a good deal when you see one and the other not having the resource or understanding to gather the resource to buy when the good deal is in your face.To overcome the first, you must stay active, know your numbers like the back of your hand.

Before you run out and spend $3K because some bozo on here told you that DMM, CC, D4$ or etc. etc. works...find out the Cost/deal.ONLY after you have a very accurate number on the cost per deal, multiply this number by 1.7% - 2%.

Not sure how accurate this is or not.

IF (and IF is a key word here) you actually learn all of what Jerryll pointed out here, especially how to properly AND accurately estimate rehab costs and ARV’s, then this strategy is a good start.

Is this accurate that this fee should be subject to a self employment tax?

Gather data.