Also, what others have said, the personal touches on what is in your place (e.g. providing all the essentials instead of having people buy TP, coffee, shampoo, etc.) and the quality of those items (no tattered towels, stained sheets, etc.).  

Review what happened and determine why each item was above or below your expectations so that you can properly plan for next year.Review your prior year goals.Did you buy all of the properties you set out to purchase?

You make the payments to the lender.Oh, and just in case, there are more items to know about when considering a "sub to" transaction but this is just a comment on the payment aspect. 

But, there are certainly several items that would give me pause.  

I haven't filed a claim all these years but insurance is for the what-if and to be used for the high-ticker items, but chances of damages exceeding the 5% is low.  

That could be achieved without spending an inordinate additional amount in cap ex; In fact all I have seen had these items in common1.

At the end i will add a list of items why adding a single ADU in single family zoned areas may not be the best RE option.The most common value add is via a rehab.  

Look at insurance and tax costs, those two items are the biggest killer of cash flow.

But enough to make to do all the cosmetics along with a few major items like HVAC, appliances, etc.

Will work on some of these actionable items