I guess it all comes down to whether it’s more beneficial to keep the property I bought at a good price as an investment or get the $100K+ and invest somewhere else.

If you're looking to fix and flip hard money is a good place to start looking and if you're looking to do rentals I'd start talking to banks.Also I think you may have put the cart before the horse as I think it's beneficial to know what you want to do in real estate before forming and paying for an entity that may not best suit your needs.

Avoid high fee mutual funds and stick to passive index ETFs.

This was the family home of some mutual friends.

Then invest into a mutual fund or any real estate investment properties.

Although I don't have a problem having a second job (I actually had one but got laid off because of the effects of covid), I'm really trying to see if it would be beneficial to flip first just to build capital.

Experienced Real Estate investors out there, what have you learned that would be beneficial to someone just starting out in this world? 

Not sure if it's kosher on BP or not, but I thought it would be beneficial for me and anyone else in my shoes to put together a mastermind group to explore development, the process, funding, and everything that goes along with it.

In some apartment markets, it may be beneficial to add a bedroom where possible. 

I should have listened as he did have a Financial Degree plus an MBA & CPA designation.He 'retired' into being an esteemed financial advisor plying his advice for the proverbial front/back end % from those he puts into mutual funds.