For example, my team has built the business to the point where we have automated a lot of steps and have taken decisions out of wherever we can.

I have posted example calculations for second loans at this next link: https://www.biggerpockets.com/forums/48/topics/854...

Most Hard Money Lenders (HMLs) typically lend a percentage of the ARV (most cases 65% of the ARV) or a percentage of the purchase price and rehab cost (Example - 80% of purchase price & 100% of rehab), whichever is less of the two as you mentioned above.

For example: should I buy the $100k homes and barely break even on rental holds until the revitalization is complete and sell?

For example I hire a roofing company, which consists of 2 brothers with no workers comp, 2 hours from my home and it is a one time transaction plus they have their own tools, take no directions ext. 

Excluded from these requirements are sales of property with 1-4 dwelling units that has never been inhabited, sales exempt from real estate transfer fee, and sales by certain court-appointed fiduciaries (for example, personal representatives who have never occupied the Property).

They actually get penalized for good business decisions and rewarded for bad ones just as long as they conform to the rules.For example, I know of bankers who got huge bonuses before the collapse that approved loans that the numbers told them would default because they were rewarded for just writing loans, not writing good ones. 

For example, if you were rehabbing a house under a business name, and subcontracted a plumber to do work in your property, you would need to issue a 1099 to him for work over $600.

For example if companies reduce their footprint by 50% of space needed imagine how much inventory is on the market with no new builds.I like retail better.

For example, you set up key word alerts. http://www.biggerpockets.com/alerts