The property has two residential units on the second floor and first floor is a retail space.

I would recommend buying a standard SFH with opportunities for an ADU, or a split floor plan where you could rent out the rooms!

Therefore, if it is solely defined as something with a "2'4" by 6'8" door that is separate from the sleeping part of the bedroom, and inherently that space must be because clothes, etc. is different space than where one sleeps, there are plenty of floor to ceiling closet armoires that have doors that are at minimum that size and would then meet the definition of closet in Oakland, CA.

Sixth: See this complexity of chaos goes on.

If you don't understand the basic principles of construction, market standards (i.e. average cost per labor hour, cost per sqft for flooring, cost per sqft for hang/finish drywall) then you may find yourself getting taken advantage of without even knowing it.

Charges for marketing pics, 3-D Tours, Floor plans?

I spend roughly $120k on my renovations, but this is for the entire property and developing the secondary suite which certainly costs more (2 new furnaces, all new plumbing, new kitchens and bathrooms with tiled floors and showers).All said and done, I personally love it.

Interior remodel, paint, floor, appliances, fixtures, etc Lessons learned?

It sounds like the 2 BR floor plan makes this process even more difficult.

., paint, flooring, or perhaps a kitchen or bathroom remodel), buying it at a decent discount, and putting down at least 25%.