When I did an online search for commercial multifamily lenders, most have a minimum lending requirement of $1M and I don't need that much. 

The only way to answer that in general (whether house hacking in today's market is still a good option) or for a particular property, is to learn how to run the numbers and analyze a specific property to see whether it will be able to stand on its own as an investment when you move out someday.There are a lot of resources here on BP for doing that but I'd just say, make sure the assumptions you're putting into your spreadsheet or deal analyzer are realistic.Make sure the rents (especially for vacant units or pro-forma #s) are realistic by doing your own rent comps; make sure the mortgage rate is realistic by doing some research online and/or talking to some mortgage folks; make sure insurance #s are realistic by getting a couple of quotes for the # of units and zip code / area you're looking in; etc.I hope that helps, and good luck 😊

A good tip is to reach out to contractors, visit local supply stores, and check out online resources for cost ranges.

I just can't find ANYTHING online that isn't from Chris or his team. 

I don't care what anyone online says if you live there and have tenants at your home it will be a job. 

Another option you will see online are companies selling shares to sections or lots of trees via a tree plantation management company.  

Review their online financials/annual statements.

I just looked online and saw that in Seattle for months to month lease the landlord is only required to give 20 day notice.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

In my experience, most of the online calculators are just taking an educated guess for you.