So if your house will make you 1k per month or 12k per year, the Net Operating Income is 6k per year. take the NOI and subtract your principal and interest payment from that.

[MP] Taxes you deduct when the bill was paid, and you will subtract the credit for taxes allocated to the seller. 

The previous years are there for comparison.Number of liens sold to investors:2018 - 1,739 (1,376 bought by investors - 363 Struck to County as no bidders)2017 - 2,141 (1,902 bought by investors - 239 Struck to County as no bidders)2016 - 1,880 (1,600 bought by investors - 280 Struck to County as no bidders)2015 - 2,039 (1,808 bought by investors - because 231 struck to county as no bidders)2014 - 2,5752013 - 2,382Total dollar of liens sold:2018 - $1,776,766.27 ($1,594,714.45 bought by investors and $182,051.82 not sold) 2017 - $2,175,069.34 ($1,890,259.85 bought by investors and $284,809.49 not sold)2016 - $1,874,010.88 ( $1,694,277.89 bought by investors and $179,732.99 not sold)2015 - $2,678,533.35 ($2,336,551.03 bought by investors - $341,982.32 not sold)2014 - $3,015,871.872013 - $3,435,014.32Average rate of return overall:2018 – 6.53% (5.45% by investors when subtracting out struck to county liens which all get 16%)2017 – 7.26% (5.94% by investors when subtracting out struck to county liens which all get 16%)2016 - 6.28% (5.25% by investors when subtracting out struck to county liens which all get 16%)2015 - 6.75% (5.40% by investors when subtracting out struck to county liens which all get 16%)2014 - 5.86%2013 - 6.55%Number of Investors who won liens:2018 - 872017 - 972016 - 742015 - 892014 - 1162013 - 201Total Number of bids for all liens:2018 - 11,8982017 – 10,5502016 - 8,8232015 - 10,5252014 - 18,8122013 - 99,073,789You bid down the interest rate in 1% increments from 16% down to 0%.Percentage with the most number of bids overall:2018 – 5% had 1,783 bids2017 – 5% had 1,315 bids2016 - 4% had 2,680 bids2015 - 6% had 2,391 bids2014 - 7% had 3,542 bids2013 - 4% had 36,251,623 bidsMost bids per lien/parcel:2018 – 1 lien had 28 bids2017 – 3 liens had 23 bids2016 - 3 liens had 20 bids2015 - 7 liens had 24 bids2014 - One lien had 41 bids2013 - One lien had 470,295 bidsCreated a Pivot table where I grouped the liens by "Property Use Description".

Likewise, the seller would take the sales price in the 1/3 and subtract out his basis in the 1/3 to calculate gain or loss.Something you may seriously want to consider here as well is property tax issues. 

I wanted to get insight on whether the window subtracts because it creates less privacy in the bedroom or ADDS because it is a more open office.

If you do have one subtract everything you can from it and save that money.Good luck

Don't forget the utilize the 70% percent rule and to subtract your rehab costs to determine your purchase price.Using independent wholesalers may give you the opportunity to find better priced deals, but you'll have to do much more leg work to qualify the leads as these groups will not hold your hand as much as the aforementioned. 

You subtract  all your expenses including depreciation from the rent and that is the amount you pay taxes on.

With your $65,000 NOI and $1.1M purchase price your cap rate is 5.91% as you mentioned.Now, subtract the loan constant of 9.63% from the cap rate of 5.91% and you end up with negative 3.73%.Therefore, given your financing structure, you're actually using negative leverage of 3.73% with that loan.

Subtract the Debt Service from the REFI at $68k and you're about $270k/month negative cash flow.