Also noticing the amateur one's being immensely stubborn and extreme gatekeeping. 

For instance, one property seems to have an extra bathroom that is not listed in the county records.I plan to make some modifications, including removing a closet wall to expand a bathroom and taking out a kitchen island that contains electrical outlets and a switch.

If you do work full-time, how much of your real estate investing (including BRRRRing properties if you own rentals) occupies your time?

The risk is too great.Overall, I recommend revising your lease to include less arbitrary language to set clearer expectations and make it more enforceable in court.Feel free to reach out directly with any questions. 

This includes endless content on how to better create content.

Can the travel mileage incurred during this time be included as start-up expenses?

Houses that sustained fire events have long term consequences including structural damage and mold that results from water intrusion required to extinguish the fire.

If history is any guide, it won't happen and it is in nobody's interest (including the cartels).

I read it a lot of different places including on bigger pockets.

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23If a purchase, you also generally need reserves / savings to show you have 3-6 month payments of PITIA (principal / interest (mortgage payment), property taxes and insurance and HOA (if applicable).