Could you please elaborate the calculation?

They also have their own algorithm that calculates some of these things. 

As long as the cash flow exceeds your PITI, it can help offset the debt, but lenders will have different criteria on how they calculate this.For your second question about a duplex with seller financing, while the seller may still hold the title until the loan is paid off, the rental income you generate from the property could still be used to offset your DTI.

I’m pretty ignorant to how bonus depreciation works- is there a way to calculate how much of the 300k capital gains tax we could offset with a 2+ mil purchase?

If you can househack something like a 2-4 unit your down payment money might go further and allow you to borrow more since often times lenders will factor in some or all of the other rent as income in the DTI calculations.

Im very interested in finding an institution that calculates its rate basedon libor.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Have you run the deal through a BRRRR calculator to account for holding costs, closing costs, finance costs, etc?   

hello, I’m living in Augusta, Georgia, and there are many sharks in the water when I go to buy something I have to be very very very very calculated and very ready looking forward and how the money is gonna come in and how to market appropriately. if anybody has any advice on how to work along sharks and red oceans, please let me know.

Use the BiggerPockets calculators.