Folks with zero experience unless that have CASH to buy the land and build are not going to do anything with the information without financing and well vertical development financing is basically not available  for beginners.

Turning a historic duplex into a high-performing asset while forcing $100k in appreciation is no small feat—seriously impressive. 

If you get a quote significantly below the numbers above you need to ensure that the contractor will actually execute the work and perform it to the required standard. 

Most are performing well and a couple of them are in the middle of dealing with evictions. 

You will have to gather more accurate operating costs (vacancy loss, taxes, utilities, insurance, mgmt fees, maintenance, HOA) to best determine potential future performance.

I invite you to perform the exercise and find what your cap ex allocation should be.certainly $50/month for maintenance/cap ex and misc is not enough and this property is definitely cash negative when properly allocating for expenses.  

Spend at least four hours a day on prospecting and lead generation.What are the best ways a new agent performs prospecting and lead generation?

So you can find better performing investment properties.

To achieve this, I’m planning to scale rapidly by performing a couple of syndications to acquire a larger portfolio.I currently have a portfolio of 17 properties, but to justify labor costs and create a sustainable structure, I need to expand quickly.

I'd stay away from Del Toro for non performing notes, especially.