There are quite a number of things that can make utilizing an FHA loan more difficult such as more barriers during appraisal, appearance of low qualification/little cash, typically longer closing period, likely higher interest rate, and PMI cannot be dropped without a refinance if 3.5% down.That said, just chain 5% down conventional loans, and make sure your duplexes pay for themselves.  

WHAT ARE THE DIFFERENT METHODOLOGIES UTILIZED IN A COST SEGREGATION STUDY?

What the gurus don't tell you is that they are comparing market rents to the GROSS amount of S8 rent on a voucher which INCLUDES LANDORD PAID UTILITIES!

The new pref equity is given priority to the original pref and/or common equity.

Starting out, it’s common for new investors to own rentals personally to access better loan terms.You will most likely have to buy it in your personal name and move to LLC later.This post does not create a CPA-Client relationship.

Utilize tools like BiggerPockets for resources and calculators, and consider creating a simple spreadsheet to track property details, budgets, and timelines.

Additionally, do you all generally use a smaller income criteria if the rent is inclusive of utilities? 

It is common area and I assume you excluded it and would be entitled to be a guest of your son.

Still, we are looking for more granular data that breaks down by unit configuration closer match to the minimums set for each military, rank) plus estimates for the costs of utilities. 

@Jason Sung Yes, this is common.