So, between the two of us, we earn over $280K.

I learned a TON, and we each walked away with $34K in our pockets (a total of $68K in profit earned).

10k up front, and then split your earnings 50/50. 

Unfortunately, I was earning about $100/mo cash flow, but when insurance and property taxes rose this year, I'm negative to around ($16).

For a commercial broker, take a look at who has a majority of commercial listings on LoopNet/Crexi in the desired area...OR for the property type you're exploring definitely check in with a local CU or your current banker for both a RE recommendation and lending options.

I would like to set up the holdings company to have multiple businesses within... an investment company so I can own the properties under the investment company and a management company so I can earn mgmt fees.Is this something that anyone has done and is it possible?

Do you have time and desire to self an STR?  

The property was located in a desirable area with good market demand, making it an ideal candidate for a fast transaction.

Purchase price: $75,000 Cash invested: $50,000 Sale price: $171,250 Bought a condo in Mexico City (Condesa), flip it and invest to get it Short term rental ready, sell it as a business, with earnings around 2,000 monthly.

However, while there are too many housing units and the population will likely continue to decline, there are still desirable neighborhoods that even as populations decline, will have the highest demand for housing due to infrastructure and amenities.