Everything is brand new expect the foundation, walls, trim, windows and the hardwoods.

I know I pay the yard guy who mows my lawn and trims the shrubs more than $600 per year.  

All carpet, padding, vinyl removed, then cleaning air handler and vents, chimney, dryer vent, replaced oven range hood & bathroom fans, trashed the cabinets (were 30 years old and gross by that time, anyway), sanded down all doors and trim that were good enough not to just rip out, actually sanded the interior of the fireplace, ordered new windows (old metal ones needed replacement, anyway) and exterior doors, then cleaned everything with several applications of TSP, concrete slab downstairs with gallons of white vinegar to neutralize the cat odor which you could smell once the cigarette smell abated, then used Kilz original on all walls, ceilings, sub flooring, trim, doors, everything but slab where tile was going.  

Paint the trim and doors.It doesn't take much knowledge to change a light fixture or faucet.

You will have tree trimming and tree removal occasionally, that is just the reality.

Did not do anything differently from one to the other with the trim.

I have a gardener that currently comes once a month to mow the lawn and trim the shrubs.  

If you worry about appliance repairs, consider a home warranty, and you may get one from your seller as part of the deal.You haven't mentioned the exterior of the property your're buying, but consider exterior painting and dealing with any rotted or poorly sealed trim.

If your current housing is stable then hunker down, trim expenses, and save.  

Trim movement - baseboards and crown molding becoming misaligned.