It's definitely possible to get a loan as a foreigner but the rates will be high(er) and the downpayment required will be as well.

You are working a demanding corporate job but also want to build rentals on the side.

Your job is in Dallas, you are owner occupied?

He did a good job but looking back on it now I think I could've done alot better with more insight and direction How did you finance this deal?

Quote from @Jordan Kaylor: What is a “seasoning requirement”?  

What you spent on the land/lots can go towards your down payment and, if you've owned the land for more than 6 months, you can use the value of the property toward the cash injection requirement.

I do it myself and takes 20 to 30 minutes a month (did it yesterday for Dec), with about 7 of those minutes for 1 property in Blount County, TN which requires the form to be manually filled out, write a check, address an envelope, scan doc and check for my records and walk it to my mailbox.

I have seen these circumstances; people die, go out and buy a car, lose their job, etc… Just my own two cents, I’m not an attorney, just play one on TV

My gut feeling and research is telling me the sellers did a poor job on the breaker panel and wiring.

Not nearly enough for a gut job or to cherry it out.