I know that the general guidance is that emergency funds aren't to be invested, but given our financial security and the fact that we already have a personal e-fund in a safe, non-volatile location, would it still be crazy/unwise to invest this 15k in an S&P500 index fund in a brokerage? 

The idea of ownership is changing with the emergence of web3.0 :)Just my 2 cents, not financial advice.

Your taxes are none of the ex wife's business and this would seem to address your concerns.I would also put her on notice that future requests for financial discovery will be two-way and if a discrepancy is seen in the other direction you will seek support from her.

If your entity has several years of operating history and good and reliable financials, you may be able to find something. 

North Park buyers might love a historic Craftsman with modern touches, while La Jolla buyers want high-end finishes and panoramic views.

@Ryan Fox it's important to make sure you understand the pros and cons of rental arbitrage to see if it meets your personal investment and financial goals. 

@Joe Gellenbeck Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a Class A property in Class D area, what quality of tenant will you get?

Clear financial separation ensures all rental expenses are deductible, maintains legal protections, and simplifies tax compliance.This post does not create a CPA-Client relationship.

It is our goal to provide all the tools, resources, education & coaching any individual needs to learn how to build a sustainable investment portfolio to achieve financial independence & generational wealth through real estate investing.It should be noted, that while the Academy is not a requirement to invest with RTR, the individuals that do join the Academy are much more successful long term since they have spent time to clearly develop their own individual investment strategy & plan!

However, financial freedom isn’t a one-time event; it’s about sustaining your desired lifestyle for the rest of your life.Once you clarify your goals, the next decision is where to invest.Investment Market/CityThe most important investment decision you will make is where to invest.