I used to own a condo as a rental and a single family house as primary.  

Aside from all of the systems that lenders use to find undisclosed debt, one of the questions you'll be asked on the URLA/1003 (the application required for all primary residence mortgages) is basically "Are you responsible for any debt besides what we have already found?"

The home is in the Sacramento area and closer to the rest of my family and he would sell it to me for a little under market value.Looking at my options, I could keep the Stockton home and rent it, along with having a new primary residence in the Sacramento area. 

I got un-renewed by my old ins and rejected by almost all ins companies (except for some crazy ones quoting me 10k/year) on my primary house, which is far from any fire zone but I had 2 claims on my 2 rentals (I am a small player so under my name not LLC) in the past 3 years so I got fked. 

Currently, I own a single-family home that serves as my primary residence.

Your best bet right now is to live in it and enjoy it as your primary.

The key is to allocate expenses proportionally between your primary residence and the rental units.

See if you can get a copy of The Millionnaire Real Estate Investor by Keller.The Slight Edge and Atomic Habits too.Awesome board with many smart people having own suggestions and ideas to grow wealth!!

We might move back to the East Coast in 4-5 years, so I’m looking for investments that can work well as a primary residence now and a rental property later.Income: Both my girlfriend and I have solid tech salaries (150k+ each).Current Portfolio: I don’t currently own any rental properties.Goal & Long Term Plan: I don’t love my current job so like many of you, I would like to create enough passive income through rental properties to have financial freedom and be able to work business ideas or side projects.

However, since you're planning to buy a single-family home to live in, it would be considered your primary residence.