Probably costs more and takes longer for an inferior product too.I think the formula that could work would be a consortium of various professionals from various professions working together to offer what you are envisioning.

A lot of forum members are very knowledgeable in their respective fields related to real estate investing, whether that is real estate sales, wholesaling, flipping, rentals, lending, self-directed IRA and Solo 401k investing, or tax and legal guidance.Discounts on some products and services are offered to BP members: https://www.biggerpockets.com/perks/proIf you haven’t been to it already, you might want to check out the BP blog: https://www.biggerpockets.com/blog/The site has quite a few tools that can be helpful for new members.

This is the low end of a hands off ADU other than converting existing living space.The more sophisticated value add people are still leveraging non-optimized zoning.

Which of the financially feasible uses is maximally productive?

If I was buying from a turnkey company, I would assume they are cutting corners since they are production home flippers.

Comment below and I’ll get in touch.Disclaimer: I am not selling or offering  any product/service I just want to gain value from experienced people. 

Read The Millionaire Next Doorhttps://www.amazon.com/Thomas-J-Stanley/e/B000APC2MY/ref=dp_byline_cont_book_1How to Finance any property https://www.amazon.com/gp/product/0757001351My favorite way is to go to REIA MeetingsSee https://www.biggerpockets.com/rei/real-estate-clubs/Ask the organizer if you can make a 30 second commercialSay "I am looking for 2 - 3 private investors, I pay 9% in 90 days, I do rehabs, you get Real Estate Security with a note, you get 9 x 4 or 36% return, and you can use your IRA money! 

I have a few rental 30 products.  

Was just setting up a LOC with an investment lender when things with the pandemic put a halt to the product that was being offered.

Get in tune with your buyers and get searching for product (properties).