Multiply this by a few days with newly shampooed carpet and you will create a smelly situation there.  

Can someone provide clarity on whether the assessed value will increase to approximately $85,000 after the sale and whether that is what will be multiplied by 2% for the property tax or not?

You can find deals with the 1% rent multiplier.

Ultimately my goal is to create / multiply my capital and buy rentals in Switzerland.I expect to close my first deal for rehab around end of Q1 2021.

While basic Fanny Mae dictates the rental income can be included in a loan process with 0.75 multiplier, they need the investor to have proper skin of the game.

I put this breakdown in my archives to keep track of what actually occurs as time goes on.Rental Income $125,400.Property Taxes $21,875Gas $1300Trash $1,400Water $3,000Insurance $3,600Net Annual Income $940,000X 10 Years = $140,000Now, I look at profit with annual rent increases plus increased property value that results from rent increase multiplied times the Gross Multiplier over a 10-year period.

I would keep couple things in mind though - the more multi-family you have, the more exposed you are to the issues as the number of doors and tenants multiplies.

Do they us a multiplier for various trads in different cities?

Does this book include all CSI costs for trades, either LS, SF, units & etc. for cities throughout the us with a multiplier?

Average it out and multiply that averaged price per square foot by the square footage of the subject property.