Couple reasons for this.1. sucks to lose money every month when you just put down 20%, which can be a lot of money2. what if there is some kind of emergency i.e. large maintenance, non paying tenant, etc, then you are really in a bind and obviously that comes out of your personal funds3.

EDUCATE YOURSELF - yes, it will take time, but will lead to a selection that better meets your expectations & avoids potentially costly surprises!

I understand I have to find the right loan and do the math, but is there really any other downside to the FHA and that additional insurance cost? 

This might be easier to handle between tenants.Market and Economic ConditionsMarket Fluctuations: Be prepared for potential fluctuations in the real estate market that could affect property values and rental demand.Economic Factors: Consider economic factors such as interest rates, job market conditions, and tourism trends that could impact the Tahoe area.Exit Strategy:Backup Plans: Have a backup plan in case your circumstances change, such as if you decide not to move to Tahoe or if the rental market becomes unfavorable.Sale Considerations: Understand the process and costs involved in selling the property if needed.

Typically ADUs in SF zoned areas cost much more to add than the value they add.  

also, you are correct about the $4500 upfront cost.

As a flipper, you are trying to control your costs to maximize your return on each deal.

That would be typical and I'd always do my own calculations.As you mentioned, these rules are similar in most Asian countries and that's one reason enough for investors like me to stay away.

The port Authority has just begun construction on a new Business district located up by Pangborn Airport.There is a large road project building a second bridge over the Wenatchee River to downtown to help with future traffic flow the project's estimated cost is over $92,000,000.A secondary Road Project is also happening on the south end of Wenatchee Ave.

I plan to get at least 3 quotes but I just thought this was a low ball estimate in today's cost.