The biggest ways IMO are MLS data, multiple solutions for sellers (off market cash deal or listing), ability to rep. yourself on your own deals (saving on commission).Commission savings adds up fast when you're doing multiple deals a year.That being said, there is cost to having a license so if you're only doing a couple deals a year then it might not make as much sense.

I think your biggest asset is the 2.25% rate and the 2019 CA property tax basis.

When the biggest buyer in the market is gone, supply balloons and rates have to go up to bring in buyers.

I am an insider with several of the biggest developers/builders, so I know what there doing next, and next after that, for years coming.

And what’s been your biggest ‘aha’ moment in uncovering hidden opportunities?

To all aspiring house hackers and those aiming for a single-family primary to hold it as a long-term rental, what are your biggest frustrations likely keeping you from jumping in the game? 

What are your biggest challenges with financing your investment deals?

Turnover and vacancy is often the single biggest expense. 

I guess my biggest concern but having to sell the house if I were to leave the country.

But my biggest advice, make sure you properly comp the property.