...your agent should be present at the inspection to chat up the inspector on what they are seeing...your agent should have a copy of the report...your agent should complete a call with you to walk through all the items and discuss whether or not you should move forward with the deal...and they should put together a scope of work, refer contractors, and even manage the renovation.If you are working with an agent and they did not do this, move on immediately or your investing career will be very limited.This is not to reflect on you, Brandon, I don't know you.By and large by the time home buyers get to the inspection stage, real estate agents, if they're involved, just want to close the sale and collect their commission. 

I’m looking at Mashvior which seem to crunch the numbers for you and gives you analysis on potential profitable properties.

I’m in the beginning stages of the process to build 5 duplexes. how do I learn more about this tax credit?

A simple BP calculator analysis will help to answer the question.

I If i put my numbers  into some of the rental property analysis spreadsheets i see positive cashflow, but i am wondering if there are any huge red flags that I am missing.

Is that getting me closer to the approval stage? 

Perhaps some analysis of your target tenant(s) will help determine areas of interest.   

I am looking at an off market 16 unit complex - I have never done a multifamily analysis but have enough cash for the option to leverage or buy outright.

If everything in the real world worked out as it does in analysis-land, than yes small multi-family would be good to start, but it doesn't, and a newer investor purchasing a multi-family unit has a 97% failure rate because the buyer is novice and the risk scale is amplified.

I'm in a high-cost appreciation market so it makes no sense at this stage of my investing journey to invest locally.