Very often even on retail sales the buyer wants to come in and measure for curtains or come in and just see if the couch will fit.

Sounds like you have had very poor quality crews working for you, poor planning, lack of ability to properly measure things, and a lack of ability to nail down costs and exit values and hire illegal aliens.

Service can be measured primarily in the lender's responsiveness (especially during the week leading up to the closing).  

We hear the stores of that perfect BRRRR where they not only cash flow ridiculous amounts of money each month, they pulled out all their money plus another $100k good measure.

We would just do some little adjustments or credit seasoning measures, but for sure no credit repair.

Or just no value add, and buy it in market condition at well below market value (our business has a big deal hunting engine so it's easy to access these properties for my personal portfolio).50% rule is not an accurate measure if you have actual numbers for expenses.

Using a simple annualized return calculation is an easy way to measure a simple $/in and $/out type of investment, but it fails when the cash flows get more complicated than that. 

I particularly liked the following part of your why - "Being able to give freely and be a blessing to others, both financially and with our time, out of extreme gratitude for the countless ways God has chosen to bless us", and I believe God will bless you even more to be able to give more.Luke 6: 38(KJV) Give, and it shall be given unto you; good measure, pressed down, and shaken together, and running over, shall men give into your bosom.

I caught a 'special' where they rebate you the cost of using their human 'design service' that comes to property and draws out an IKEA plan with measurements.  

For example, add on impact of the rent-control measure they release this year which is a pre-approved blank check so it's anyone's guess how bad it could be but all signs are it won't be nice.