If you mean you are using a "Construction loan" to add onto a SFH adding 3 units that could work but you still need a down payment. 

@Mak K.Your best bet is to get multiple quotes and do research on the roofing companies.

Your best bet is to network at a local REIA and find a good private lender or other investors who will do a joint venture deal with you. 

it's hard to do that as an agent, easy to do as a spec or volume builder or developer if you have floorplans you like, etc. we build triplexes happy to chat and help you understand the market better here and see if new construction is for you 

A real estate agent with knowledge of investments, analyzing deals, knowing construction, and having crucial contacts will drastically improve your odds of success.

I work with new construction duplexes in Indy that are a great fit for investors looking for turnkey options without the headaches of major repairs.Feel free to reach out if you'd like to chat more about how to get started in 2024 or explore some out-of-state options.

Time is something I would have to consider; thankfully, our family business is construction, so hopefully, I'll be able to get those answers quickly! 

I'll bet you a dollar he doesn't have a license.

I was buying brand new construction homes at the foreclosure sale for 30 to 50k.  2 years before the same houses were selling for 200 to 300k.. 

Best of luck, I bet it would be great!