Could you recommend any resources or provide advice on the best way to approach this?

That being said, we have owned a fourplex in a small town in Michigan for about 10 years but had no guidance when we purchased, I have found all the information Bigger Pockets offers extremely helpful and I am grateful in advance to any advice on this thread. 

I recently graduated from the University of Washington with an engineering degree and will be starting my first full-time corporate job on the 23rd of this month.

This home had a HUGE delay that cost us thousands of dollars.The group that put in the underground plumbing dug the plumbing too low, and by the time we caught the mistake, the slab had already been poured and the septic tanks installed.We had to dig up the septic tanks, install a lift station, and reinstall the septic tanks.This all happened during 2 hurricanes, which caused even more delays.Time kills deals.This is why you need to 1) be conservative with your timelines and costs, 2) add contingencies to your budgets, and 3) have a healthy profit margin.

We can't really answer this without specifics. 2.

If the realtor is, they should be able to just ask you the basic questions they need answers to and keep this moving. 

Does anyone else do this?

What does this look like? 

Central heat & air*I made this below chart based on this community shared knowledge (Thank you all).

I tried this company and they lasted all of 9 months.