I ask because if you redid ele and plumbing for kitchen and bath, plus added new panel and did rewiring, than those costs are quite low.

If your parents have a Revocable Living Trust then the property would be deeded to them, depending on what their decisions are within that Trust, you can be added on at the beneficiary of that property.

(I will research what the likely cost will be and will add in some extra for Tenant A to make it a positive for them).

Umbrella insurance policies can add an extra layer of protection across your portfolio.

I would also look at some ads, maybe even call on some ads and ask what the requirements are to see what others in this area are charging. 

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it!

Preapproved ADU plans offer extra space or rental potential.

This speaks to the point that I make ad nauseum that I sometimes get flamed for and that no one wants to believe. 

Some co-hosts are locals who will assist and drop off extra linens, do check ins, etc. 

This will give you extra cash flow in the first year and/or the early years to maximize your tax benefits and make your dream come true.