I replaced my plain glass "old as dirt" drafty windows with double paned ones about two years ago. 

What is the integrity of the houses' systems and when will they need to be replaced (capital expenditures)?

Hello All, We've entered escrow on a property just yesterday that has been on and off the market for a few years, and according to the selling agent multiple potential buyers have been in escrow on the property but eventually ended up walking due to the sellers not being able to find a replacement home.

You said the cash flow for the replacement property with the financing you were offered will be $500/month.  

I am a senior in high school and I will be attending Texas A&M university to get a masters in Aerospace engineering. 

Frank Rolfe bought a park with an NOI of -$26,000 at a price that was far below replacement cost.  

I work full time as an engineer and don't plan to switch career fields.

Does anyone recommend a good architect / Draftsman or even an engineer that is in the Sacramento area with a quick turn around?

Having been an engineer should help you.  

If the material you buy is faulty, you may end up having to pay for it to be pulled out and replaced and deal with getting reimbursed by the material supplier.