@Sejin KimThere are many intricate details in a deal, particularly with multifamily in a tenant-friendly state like CA. 

This is the simplest method, but it also means your tenants are more likely to abuse the utilities by leaving windows open with the heat or A/C running, leaving lights on, ignoring the toilet that constantly flushes on its own, etc.3.

Most transactions between friends or loved ones fail.

Inflatable hot tubs can be a budget-friendly option, especially if you're testing demand before committing to a permanent one.

I’m mostly interested in multi family homes (using the Brrr method).

The tools that are offered are exceptionally useful and user friendly.  

Preferably something that is app friendly.

You might also want to find an investor friendly agent in your market who can help you break in and spot good opportunities.

But even if multifamily options are limited, a single-family home with a rentable guest suite, basement, or garage apartment can still work.Finding a VA-friendly lender who understands house hacking is key.

Lower property taxes and landlord friendly.