Is there any way to estimate this?

3.Plan every detail in advance (as much as possible)Even if you have a very competent contractor and architect, unless you have a dedicated project manager (we did not), it’s critical to know and plan every detail in advance—or be prepared for unexpected delays.

Yes, but they don't tend to go so detailed.

What's the price and investment estimate? 

The reason I estimate $120k in repairs is because I want to increase the ARV and increase rents, which brings me to my next point:A 4-unit renovated comp with the exact same specs showed up on the MLS today for ~$1,600,000!

I'm sure I drove her crazy sometimes with the tiniest of the details. 

@Andrew Bradley If you estimate the ARV at 300k then buying at 187k does not leave much room at all.

I would like to discuss the GC position in detail when you have a moment. 

I’m trying to buy 2 family house that is Currently a old day care center and the CofO is listed as Community Facility so the process to change back over here in new york could taKE up to 6 months to year plus Architect is giving me a Estimate of 100k.

If they have not provided you with a detailed idea of what types of houses you would be able to buy and what condition they are in, you may need to shop around for another broker.My loan officer made sure I understood what condition the house had to be in.