Something problematic they find that was undisclosed on your application (not saying you'd do this, just giving an example), title issues, entity issues, issues with the appraisal even if the value is acceptable...you can either bite the bullet and pay for the appraisal, don't move forward with the loan, or try and find a HML/PML willing to lend to you without an appraisal. 

FB Mktpl has yielded the most quantity of inquiries, but also the most unqualified and applicants that have no idea where the units are located.

I'm not familiar with loan applications for non-US citizens, but Greenville is still a great place to invest when you find off-market deals.

It is not, it has limited application, and for travel expenses it does not apply at all.If you do not have a mileage log, you have to do your best good faith estimate and then pray that you're not audited.

If it were more than three years ago and everything else on their application was perfect, then I would consider it.However, I've never seen that in 15 years of management with hundreds of rentals and thousands of applications.

For the 2nd applicant, her credit score shows 770.

Look into factors like vacancy rates, local job growth, and tenant demand to pinpoint promising markets.Once you find a property, work on running the numbers carefully—factor in purchase price, rehab costs (if applicable), property management fees, and reserves.

The time it takes for the draws from tenants and then the ACH transfer to you leaves you getting pain on the 7th or 8th of the month, the $1 ACH transfer fee is an annoyance that has drawn some complaints that are as petty as the fee feels, the new tenant application features are sub-par, and I'm not sure how well it properly informs tenants of the additional charge for credit cards as I got panicked texts about the added fee from a tenant already going through some hardship.

Lenders have different loan capacity at any point in time; they might not announce that they aren’t making a certain type of loan right when you need it; they’ll take your application but either delay you to death or find an obscure reason to decline the loan4.

And yes flipping multi families is definitely less risky, but not as applicable and available to everyone as single families.