To make everyone's life easier I definitely feel as if investing in the lines is the right thing to do.

With enough passive income to support your lifestyle, you can spend more time doing what you enjoy.

Just ask for them to put a ceiling on how much the loan can adjust for the life of the loan and how much it can jump each adjustment. 

Another thought, if you can fund it alongside the bathroom reno, might be a dormer in that section of the roof - not sure what roof style is from this photo, or what is just outside that window that might make that unappealing, but a dormer would really open up the room even if you don't make it any wider, and would give you more full-height square footage to work with.

I am new to real estate myself, but it has been in my family and around me all my life.

It goes with the theme that’s in style now “rustic”

I could't think of it for the life of me.

Jacksonville is the biggest city in the US, land wise, so even my sister who has lived there all of her adult life (20 years now) does not know all of the areas.

Or buy rental properties for cash flow and build as much as you can and keep growing even if you achieved a comfortable life style?

My favorite and it is really about the business of life is.....How to Fail at Almost Everything and Still Win BigBook by Scott AdamsScott Adams is the creator of Dilbert.