We're looking to buy a property (most likely a condo due to budget) and would like to AirBnb it for part of the year and use it for part of the year.

Using the money from selling that home to continue buying ETF’s (paying dividends) and continue offering private money loans to home flippers I partner with. 

You can offset this with points.When the lenders provides you with an estimate of the loan along with all the charges pay specific attention to:Origination fee - This is whereLoan Points - Sometimes they force you to buy a point and they bring down your rate in returnapplication feeunderwritting feeBasically you want to compare how much you are paying in all of these and what interest rate they are giving you based on this costs.

Buying Houses is A Sales Job - we are selling the seller on the fact that we are the right ones to buy their property.

You can wholesale anything you buy.  

I've notified the HOA because roofing is under their responsibility but - I highly doubt it gets taken care of soon enough.Does anyone know - can I buy an umbrella policy even though 1 of my units has no homeowners or rental insurance on it? 

This is a great option, but you are still limiting yourself to investors who want to buy an already occupied home.

Need to concentrate on stuff here first.My main questions are how on Earth would I target a group of people that are into buying investment properties in Mexico?

I'd rather use the money to buy another property(s).....

So if I refi three and buy six more - than I lose about 3K in cash flow and only add 2400 in cash flow from the newer places.