I want to learn more about the BRRRR strategy, as a means to build a cashflow portfolio, by leveraging my experience a custom home builder and developer. 

i can't speak to what their overall customer service has been because we only know what's in your post. 

Quote from @Denis Gvozd: @Gabriel ShapiraI'm not an investor, but my company, PropTechVision, Inc, builds custom AI tools for investors in real estate.

Felicia,All good questions when I discuss options with my customers I typically look for highest rate with the most equity.

The sponsor is the one driving the ship, the one making decisions, the one who has to communicate, the one who is the bearer of good and bad news!

All of my customers in NJ, NY, CT, CA, WA and other states are all buying in those states as well as a few others.The price to cash flow ratio is going to be better in those states as well as having a higher inventory of both single family and multifamily rental homes.

Now that I'm a more experienced designer in real estate, I would love to customize my kitchen more with different materials, unique tile, and more unique pulls/knobs but having a large, clean kitchen was extremely appealing to me as a first-time buyer 4 years ago.

You are required however to have a license like myself if you are offing a service to customers.

"Oh the customer insisted on buying the materials, it's not my fault"

Some states do have special guidelines or customs that differ from state to state, but this is a minority of situations.