Additionally, are there any other factors I should be considering when purchasing a duplex or triplex?

Just one additional option.  

Otherwise, you may need to replace a water service (13-15k), electrical service (10-15k) and upgrade wiring (This is a tough one, but maybe an additional 8-15k inside).

Additionally, for the AR llc, do I need to register the LLC in California as a foreign company?

What zoning code could I request a zoning variance or rezoning that would allow us to have the 2 livable units on parcel, one primary residence and one additional living unit (known currently as ADU)?

Hi,We recently (Aug 2024) bought commercial land of around 2 acres. this was part of bigger commercial lot (around 25 acres) which had AG exemption and so the taxes that they paid was around $20 each year. we received a 'AG ROLLBACK' letter from the appraisal district that starting 2025 tax year, we will be taxed at it market value resulting in additional taxes, interest and possible penalities for 3 prior years.

Westchester, although one of the hottest markets, has a ton of upside with opportunities for both cash-flow and equity. 2-4 family properties in Westchester are the 2nd most affordable in the NYC Metropolitan area (next to Suffolk County) making it easier to find cashflow opportunities when compared to the boroughs and other suburbs like Nassau.A client of ours in Westchester recently purchased a < $800K 2-family with a detached 3-car garage which brings in additional rental income - from a local business owner with commercial vehicles.

Quote from @Victor Yang:In addition, is it possible for me and my wife to gift 36k worth of equity per year of the house (under the annual exclusion limit) and therefore have none of the costs go towards the lifetime gift limit?

Than be smart, site back and listen, take it all in, be a good student. 

I put supplies on the job site.