Quote from @Kayla Givens: @Vatsal Patel I highly doubt it - the sober living model is not something just anyone can do.

It takes time to get used to it but it's awesome!

Your architect can create this for you.For hot water heaters, is there a lock on the door to that room?

A builder’s risk policy is also worth exploring, as it can protect the property, materials, and equipment during your restoration work. 

look at other STR data in the area and do similar style to do your best to recreate similar results 

But it is a harder market than bay area as finding good tenants and right areas to invest for your criteria takes more work. 

Start doing category 1 items right away, provide notice and do category 2 as soon as you can and finally prepare and get ready to initiate category 3 items based on your ability to handle them. 

It has 2 separate dwellings.

I have never seen anything that suggests you can go over the 25k against your regular income if you're not a real estate professional just because its an STR. 

Do you have any links on how long water softeners are expected to increase the lifespan of various components?