As segregation takes items into account like appliances, roof, building material etc.. would it be okay to estimate below: >> 500k property value (150 land+350 built), can provide around 80K in max deduction on year 1 ?

It allows investors to buy shares of high-value assets like real estate or luxury items without full ownership.Advantages of fractional ownership:Diversification: Spread your risk by owning fractions of various assets.Accessibility: High-value assets become accessible to more investors.Passive Income: Earn without actively managing the asset.Professional Management: Management companies handle maintenance and administration.Appreciation Potential: Assets can increase in value over time.

An entire shelf fell off of my wall breaking a few of my antique items, that were not heavy.

It would be a temporary loan until you fix the items, then you could refinance into your regular loan. 

If a lot of work is needed, itemized costs will add up fast, and depending on how well-versed/skilled your GC is, your deal could be killed if something is missed. 

Whoever you go with, ask how they plan to capitalize items, if any. 

I wonder about protecting my private items. 

To do it correctly, take all of your appliances and major items (ie. roof) and amortize costs over the useful life.

As agent count drops, the cost of these items has to increase to offset the drop. 

While I have good cleaning people, numerous handi-persons and licensed contractors, their availability is not  24/7/365 I have to pinch-hit on guest issues and repair problems when the support staff is unavailable.We often find problems, broken, stained, damaged & missing items, during turnovers that have to be dealt with quickly.