You got your house pre-pandemic at a steal and refinanced at those incredibly low rates, allowing you to undercut the competition significantly.

my first thought is to use the 75k heloc to BRRRR as fast (and as well) as you can in a low cost market!

Obviously this is an investment as once she is finished with school she will make more money, but realistically we are looking at the next 4-5 years being pretty tight on cash from only me working and paying off the debt.Is investing even feasible with low amounts of cash on hand?

At the same time I hear of others in different markets who say they have 6 doors and cash flow at the level I am at with my 25 doors because their rents are so much higher in big cities.

For a rental, I would just use off-the-shelf cabinets like those at Home Depot or Lowes.

We will be selling one high equity house with low cash flow, and transitioning into high cash flow houses in an area where we already own houses.  

Check out the Reno, NV market because of the proximity to CA, landlord friendly and low property taxes.  

I think when one is starting out, you want to go lower than competition, but not so low that you attract the wrong crowd, so that you can build momentum and reviews.  

All of the above going well: Great job, but if you're getting blown up with requests and showings and applications it means you probably priced your place too low and you should consider increasing the asking the next time. 

Buy and hold in one of the A class areas in Baltimore, if you are going to do Baltimore, it’s the only part of the city that has growing population, and rehabs are extremely tough right now especially with no experience, I’m doing one right now on the eastern shore, basically cosmetic, was built in 1994, systems, plumbing etc in good shape, labor is even less than Baltimore, gc-ing myself, still running me 70k, materials are insane right 3bd 1ba, mid tier Lowe’s stuff (I’m even putting in a shower insert, no title) is running over 30k.