Here is a list of why adding a single ADU in single family zoned areas in my CA market is typically a poor RE investment:1) The value added by the ADU addition is often significantly less than the cost of adding the ADU.

Additionally, I’m a licensed realtor in Pennsylvania, which has allowed me to expand my expertise and build a solid foundation in both investment strategies and the local market.I’m eager to connect with fellow investors, share insights, and learn from this amazing community.

No kidding this is as simple as it gets.. just advertise that you accept shorter term leases and riase your price.. we have been doing it in Vegas for years..

We have adult kids.

Given that you're not married, that adds some additional complexity.  

I don't know if I will do the a/c and heat but might do dishwasher and w/d soon.My dad bought the building in the 70's when I was a kid.

I do have additional coverage for the sewer since I knew it may have issues before I bought the property. 

I would like to use the garage as a game room for the kids.

Additionally, the contract with the wholesaler is set to expire on Monday the 27th.

I've owned student housing as far as 4.1 miles from the University of South Carolina campus.In my experience, the only reason kids would live that far away is cheap rent.