9) adding multiple ADUs or adding an ADU to a quad looses F/F conventional financing.

A key improvement was removing a wall to create a larger, open space, significantly boosting its rental potential.

I hope to make a bit more on deals, but not loosing money with a huge learning curve is a positive.

Dry and remove mold.

When you house-hack, you have a property that is both a personal residence and an investment property.As such, certain costs, such as real estate taxes, mortgage interest, snow removal, insurance, etc have to be prorated.There are other costs that, if directly made to the investment property section, can be directly deducted.

I hire a pluming company replace a shower drain he quoted me at $560.00 He had down the initial inspection and the never mentioned anything about the shower pan being damaged.Today he came out and said that the that the drain was corroded from all the hard water and was not able to remove the drain, he them send me photos of the shower pan with a whole near the drain and the tools use to try to remove it.

If you remove this covered peril, you're removing wind damage coverage to the entire building, and not just the roof.Your assessment of the deductible seems accurate, but I can't speak for the replacement cost of a new roof. 

If you remove your name from the deed (ownership) that is very different than the mortgage.

If so, most lenders can remove that debt off your DTI after 12 payments have been made. 

I asked my roof contractor to remove the skylight and replace it with a normal roof as well (which he did a few days back).My tenant is saying to the PM that he is getting medical testing done now due to mold related health issues.