I recommend finding an accountant who specializes in real estate taxation and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

Is this more about having to file quarterly? 

@Michael K Gallagher When I go back six years it only shows the numbers quarterly.

I also subscribed to RankBreeze ($80 per quarter or $27/month) and have a StayFi router to collect guest contact information ($15/month).

What happened to no taxation without representation.

My cash flow is calculated by income - fixed expenses, which I can calculate monthly, quarterly, or yearly. 

@Lucas MoralesIf you have coin op laundry in the building as well make sure you have a machine that gives quarters as I have had people use the vending machine to get their quarters for laundry and you have to constantly restock it.Personally I would say it’s not worth it unless you are far from grocery / convenience store.

Additional fees may apply depending on the number of days the property is rented.Personal Property Tax: Starting in 2024, California requires some STR owners to report the value of personal property used in the rental (such as furnishings) for taxation purposes.Potential 15% Statewide STR Tax: A new bill (SB 584) may introduce an additional 15% state tax on STRs starting in 2025, on top of local TOT, aimed at addressing California’s housing affordability crisis​(

He is actually in another type of apartment situation in a house, but it's got some shared quarters. 

I recommend finding an accountant who specializes in real estate taxation and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.