Regardless of how you financed your rental property, you can generally deduct repairs and take advantage of depreciation schedules.

-What about repairs, capex, vacancy? 

The appliance repair man who just went out said to get a power surge protector for washer/dryer and they had a lot of issues with recent fires and power surge.

Most contractors here in California will charge their hourly rate and possibly ad on a smaller charge if they need an assistant.  

They are responsible for repairing it, whether they have insurance or not. 

After closing, I painted the whole interior of the house, made some small maintenance repairs, added new LVP and updated light fixtures.

Generally - the depreciation on the structure, mortgage interest, property taxes, repairs & maintenance, insurance, property manager, utilities, vehicle expenses (mileage), professional fees (reports/CPA), home office (office supplies, percentage of utilities, continuing education).

No maintenance as Buyer does all repairs. 

What if a tenant fails to pay rent, leaves $2,000 in cleaning and repairs, and it takes another month to rent?

Government assistance/tax credits are of course a consideration that is factored in to the cost/benefit analysis of any form of new energy generation, as all forms of energy are heavily subsidized and always have been, long before solar entered the equation.