Currently I'm working for the Navy as an engineer.

Also maybe add in some tech/engineer real estate guys as well ^__^ 

Is this an easy fix or is this something that could get pricey the issue he has is the 2x4's supporting the roof. any input from experienced carpenters is much appreciated. my dad has incredibly high standards for things so i am trying to get a second opinion.

By no means, I consider myself experienced enough tell you I can help with whatever you may need, but I know enough to be of some help.

its a great place to find like minded folks who run the gambit of highly experienced to total beginners and everything in between.. although I would say its slanted towards those starting their journey and many once they get going and have some success contribute less frequently.you have those that are in some sort of sales business so are always marketing themselves or their companies.. through writing blogs and or posting on the site with regularity. 

I have had experienced a learning curve with my first two rentals and am looking to expand and grow this to a point of replacing my income.

If I were you, I'd look at your local REIA for an experienced person who would mentor you a bit -let you do some deals with them where you do a lot of the work for a small piece of the profit.

Last week we experienced our third slab leak in the last 4 years.  

I ended up getting an engineer's report.

Needing the review of more experienced members.