For example, are there HOA fees, how much does gas, electricity, and water costs per month?

Also with the house being built in 1947, I concern that they may want me to bring it up to code with electric and plumbing; which my blew my budget.

With older homes there may be some deferred maintenance and maybe some unseen big ticket items that could come up like plumbing or electric.

I currently own and operate an electrical contracting company and a general contracting company.

Who do you call for your own home if you need help with plumbing,, electric,, heat,,, this is a good start for vendor list and then on to asking family and friends.. 

I've become really interested in the general workings of a home (structure, plumbing/heating, electrical), and I consider myself to be pretty capable of doing certain repairs and upgrades on my own with the help of google.

This was the best timing, and i just couldn’t believe that if you put the time (MONTHS AND YEARS) and energy (mentality and focus) you can truly do whatever your minds sets you.

I've been doing rentals for years and I want to save my time and energy.

For me, I will not be doing any additions at the moment, but from what I've read you typically need them for minor replacements of siding, framing, etc. as well as any work on HVAC, electrical, plumbing, etc. separately.

See if any of the electrical is updated in the house.