This will be a 1,600 square foot residence, 40 x 40. 

Loan terms are 30 years fixed and there are 10 year IO options available.Lenders will require a Passport, Verification of Residence (Mortgage Statement, Utility Bill, etc..), Either a US credit report or credit trade line history in your country of origin, US Entity documents (EIN, Operating Agreement, Articles of Organization,), 2 months bank statements for proof of closing, and 6-12 months reserves on top of closing costs and DP. 

There is a different but IMO Costco is plenty good, I use it in my personal residence as well. 

Did the seller not provide honest financials? 

We were honestly surprised by that.

I would first check to see if HELOC is even an option - in TX its hard to find and can only be done for a primary residence.

To be honest starting out seems overwhelming and scary especially considering investing much of savings into a property that may or may not be successful.

@Brett JurgensThe "2 out of the last 5-year rule" in real estate allows homeowners to exclude up to $250,000 ($500,000 for married couples) of capital gains from the sale of their primary residence if they lived in the home for at least two out of the five years before the sale.

If they're not challenging you, or your personalities don't mesh, be prepared to give them honest feedback.

Investment Info:Single-family residence buy & hold investment.