@Dan Bowe, if the broker lies to you, he risks losing out on your potential offer. 

They can leverage their network and expertise to find potential deals, including off-market properties.It's crucial to think about the downsides of gap funding and explore other ways to build savings.

I am also actively looking for my next primary (likely will be a multifamily still or SFR with ADU or with potential to add ADU) as we have really outgrown our current 2 unit property in Bayho. 

The Council of Economic Advisers, which is an agency in the Executive Branch, is publishing the research and data.

Education and research hours, "managing the property manager" all have failed under audit historically.There is a lot more nuance here I could go into, but I would strongly advice you talk with a real estate-focused tax professional.

You need money, market research, time, and contractor support. 

The only thing I would potentially be weary of is damages to the property.

I have not, just found the organization online in researching.

Research  The wage rates for the positions you want to hire, in your area.

Building a duplex or triplex for house hacking could be a solid investment strategy, especially considering the potential rental income and your ability to live in one of the units.