And what are some of the parameters that we'd be required to meet (ie distance from primary residence, etc)?

@Chris Combado, Publication 523 from the IRS lays out the requirements to extend that window for selling your primary residence. 

I have good credit, but not sure how to obtain financing with my current income so I am looking for financing options that don't require me to provide 2 years proof of income.My current plan is to do the following but would like a professional opinion before proceeding.

You can also find some online courses through some junior colleges that might be a better alternative.

I find them to require a lot of effort and a fair amount of skill. 

If you want to refinance to take cash out on an investment property you would need to do a conventional loan, conventional loans require 12 months of seasoning.

In the lease he is required to give a 30 day notice. to vacate the property.

Assuming you are inquiring for the Myrtle Beach market, the average (across the 5 submarkets and all property types) is for 72.5% to require 2 nights or less (46.5% have no requirement).This is highly variable by ZIP code and property size/type, however.

Small note on the JADU requirements... the interior access requirement was recently dropped.

This property meets all the requirements our bank told us it needs to meet, but they are only willing to finance 600-700 thousand.