Old post but I figure I would comment here... my Company, Maven Cost Segregation has done studies on projects like this.

They can provide access to off-market deals and connect you with a network of contractors familiar with BRRRR projects. https://www.biggerpockets.com/business/finder/agentsProperty Manager - Choose a PM with Section 8 expertise to ensure smooth tenant placement and compliance with inspections and rent guidelines. 

But I strongly urge anyone to always get Aldermanic support before proceeding because it makes life--and the entire project / process--a whole lot easier. :)IN SUM: Based on what you've shared, it sounds like you won't need to rezone if you just want to build a duplex.

Projected sale: 950-990k Replacement property budget: 990k - 1.1M Plan: rent out the replacement home until meeting the requirements, then move into it while renting out a portion of the home via short-term rental 

As a masters degree project 50 years ago I analyzed the Detroit real estate market in 1974.  

You may want to adjust your criteria a bit and sacrifice projected cash flow for stability and projectability.All the best to you in your investment journey!

I run the project.

Read Hunter's book.would like connections for future projects

Long story short, it has been over a year and the project remained incomplete and he walked away with the money.

Investment Info:

Single-family residence buy & hold investment.

Purchase price: $420,000

Cash invested: $55,096

Purchased a distressed single-family home in Antioch, CA, using the BRRRR strategy ...