From my research on Zillow, I'm seeing a duplex that has for about $311 per month in that area so not sure if $42 is the most accurate number for monthly taxes.

In a waterfall, the GP is incentivized to stay the course, gambling the LPs equity, because the GP only makes money above 7%. 

Pick your favorite, I have found Realtor.com to be the most accurate and I get the alerts there first.

My ultimate goal is to house hack a 3–4 unit property.I’m seeking advice on how to accurately estimate the closing costs and monthly expenses associated with a multi-family property.

Is this accurate?

At that point things are more of a gamble. 

Do numbers look accurate?

Depending on the zip code I was wondering could I gamble with them on a fix and flip or brrr.

In the Reno market, we have access to hyper-localized and up-to-date rental data and local knowledge of different areas, providing a more accurate picture.Remember, buying real estate is a liability until you sell it, at which point it becomes an asset.

Assuming the total cost is accurate, how are you completing this project with $750K of total committed capital?