So my other options were to use my good credit but of course all of the loans want to use my personal credit and impact my debt-to-income.

Start working on your credit score and research financing options, including FHA or conventional loans.

If we do everything correctly and we screen carefully (credit check, employment verification, etc.), what would be the worst-case scenario?

Keep in mind its end of year pretty much every seller and builder is offering a 2% seller credit its the norm.$50K in earnest is a lot and if the lender drops the ball are you positive they can get the credit denial out in time to refund the earnest?  

Invest the $550,000 in a mutual fund such as S&P 500 or VTSAX with a 10-year history average annual return of 12% 2.

If I were to apply for a CFO role now, more than likely I have to advantage over a CFO that was in a manufacturing company for a real estate company.EAs specializes specifically in taxationCPAs have a broader knowledge for accounting, auditing, financial planning, and taxation.EA must pass a 3-part IRS exam and do not require a college degreeCPA need a degree in accounting, 150 credit hours of education, must a 4-part CPA exam.EAs often charge a lower fees

The experience goes with track record - do they have a history of doing this and being successful as well as having failures.

I stand corrected:)They do have an office in Metro Detroit and while we're far from perfect, we seem to get a lot of their unhappy previous clients.In our opinion, they built a system for Class A rentals - where tenants have 680+ credit scores and rarely have to be evicted or trash properties.They then tried to apply their processes to Class B & C rentals and that's when their service issues increased.All this caused them to recently significantly increase their Flat Fee pricing and monthly minimum charges.

Here's a little bit of history:                                                                                    In the first half of the 20th Century Waco was a booming city on it's way to be just as large of a city as Austin or even Dallas, but in 1957 a catastrophic tornado hit Waco, destroying it's entire downtown area.

For now, we’re working hard to build our credit, which is already in a decent place since we don’t have significant debts.