Anytime you're mixing your living situation with your investment goals you need to carefully consider what trade offs you and your family are willing to make.

Never mix blood and money. 

I have an opportunity for a small mixed residential/commercial property in a college town.

One thing I'd like to throw into the mix.

We are currently trying to purchase a SFH that is zoned as Industrial- mixed use.

I am a IT professional by day(mix of software development, project manager, and systems analyst), and wannabe handyman/REI/builder by night!

I may have gotten those numbers mixed up but to my knowledge they are potentially nation-wide standards for FHA loans so I would think it would be relatively easy to add them to the calculator. 

You could ask the seller if they would be willing get the extensions as part of the contingency.Bank financing will depend on the property, the tenant mix and your financials.

Prefer a mix use where I can either rent the store below or open my own store and rent the above apartment or a single store.2.

We usually have a great mix of both newbie and experienced investors in attendance.