Very unsustainable model as we work to go digital.

So we shifted our model to STR.

I agree with @Marcus Auerbach that you need to find an agent you can trust to be your eyes and comp-delivery system to make sure the deal is correct.

I think getting multi-family and turning into a STR could be a great business model and is something I’m looking into currently, but it carries more risk for sure.

These are all things you need to have in place BEFORE you think about scaling up and taking on investor capital.Now- the other part of your question about the fund model versus assignment process. 

I mostly stick with buy and hold which is a much easier (and lucrative) business.If you really want/need to stick with the flipping model, make sure your skills are up to par to tackle things that a casual flipper can't handle.

FYI: we went through the Anderson law recruitment pitch, and would have loved to go with them and their business formation model, including the use of the holding company, etc.... 

Not a model of safety, so I don't recommend it. 

Didn't think about turnover costs from the PM, will add that to my model.

Don't get me wrong I would love to have 10 houses like you have, but I could never have built a viable business model on it.