You wouldn't use hard money for long term financing, and you shouldn't use a Heloc for this either.

We are in the STR Zone, and the goal (if possible) is to get the project complete before 2026 Fifa world cup. do STR for 2026 and start long term renters after.

And you do a cost seg study, If you plan to hold this property long term does it make sense to do this?

I have been a long time listener to the Bigger Pockets podcast.

We just moved out and are renting it long term and making around $400/month.

Im here in Southern California, I wanna know how the market is here in terms of BRRR's and mid-long term rentals.

As long as you like your job and/or industry and could do it for the next 15 years, what you are doing would work perfect for your plan.As you gain experience, maybe you can move into more units per purchase or start to BRRRR.

, The builder told me that as long as my HELOC is zero balance on closing that will be okay, but I did not ask them if it will drastically lower my credit in case they will pull again for the third time with the builder. 

So, as long as the bottom line is a positive result  (grater than zero) the deal is good?

Guessing the potential long term construction of a new road and housing development with no time line is scaring people away.