I have an opportunity to make a quick 30k in equity, but only cash flow around $25 — if I look at long term appreciation, that seems to make sense to me, but am I overlooking something and trying to make this work?

I'm not familiar with your market, but here are some thoughts:750 Sq ft is small for a 3/1.Interior looks like a flip but it seems like it has been owned by the sellers for a long time...so maybe not.They have been trying to sell this property for 6 months and have reduced price. 

I’d think long and hard about this and possibly set up financial parameters for who is responsible.

As long as viewers can see the layout and general quality, I think it's safe to market.

HELOC= short term useFixed (first or second) = long term use like a down payment.  

I’m Mark, a new real estate investor based in San Diego, leveraging my background in AI-driven lead generation to find off-market deals.I’m currently looking for small multifamily properties (duplexes, triplexes, or quads) to rehab and house hack, to build long-term cash flow while living in the property.Outside of real estate, I’m into fitness, golf, and exploring San Diego’s best outdoor spots.

There is a single family home that was divided and one half has been rented and an ad on small "house" that has also been rented mostly long term.

I'm looking at it long term and will not need the equity anytime soon.  

The strategy there is more about long-term appreciation since cash flow can be razor-thin.

But I'm getting substantial pushback from family exactly for being on-call like that for so long.