The main house will be house hacked for the first year and will turn into a co-living.   

Quote from @Edward James smith: Hello, I currently own a single family house with an ADU, and a duplex.

Still lots of work to do on the house and the “book” I still have to figure out what to do for it (paper/digital/both), and a few more things I probably am not yet aware of … reading on this forum and asking questions sure has helped out a lot.

And not knowing their numbers also makes it next to impossible to know if you have a bad PM that's eating into your cash flow as well (Like Vacasa charging $800-1000 a month for elecrtic on a 4/3, 2000sqft house with a pool). 

I have done some research on ADUs and have come to conclusion that getting a house near a hospital or good college area with a big yard to add an adu and convert gargae to junior adu would be best.

The interest rate isn't that huge of a difference between the 15 and 30 so worst case scenario if you have the 30 year option is you start paying it down on a 15 year timeline - sure you'll pay a little more in interest over the 15 years, but it will have been worth it if you bought another house.

As far as your next property, if you are already considering moving you will get better loan options + interest rates if you decide to live in the next property and rent out your current house. 

Toxic paint et al.Would you want your family living in house remodeled with cheap Chinese s**t?

@Madison SloanTo start house hacking, focus on saving for your down payment, researching target markets like Salt Lake City or North Idaho, and building a strong team of professionals, including an agent and lender.

Since you’re already networking and have some good realtor contacts, focus on narrowing down your investment strategy (like buy-and-hold or house hacking) and target markets with solid cash flow potential.