If the tenant creates additional charges, I deduct from their deposit.

If someone filed a frivolous complaint against me I'm automatically out $5k for my e&o insurance deductible.

Rather, you'll receive an income for life and then a charitable deduction in the amount of the expected remaining balance given to the trust. 

You'll still have all the same deductions, except for your interest payment.

In many cases, rental losses can be deducted from your taxable income, but there are limitations and eligibility criteria that may apply.

If so, I believe the lender should not be counting this kind of deduction against him.

The additional costs for commissions and costs are negligible in the bigger picture and if you are looking at capital gains tax it's a deductible sales expense which more than offsets the additional costs.

Duplex - 100% immediate passive income, Tax benefit (schedule E) more deductions to get more back or owe zero at end of year.

Your primary residence you get to deduct the interest and taxes but not the insurance.

And once you factor in interest, you are losing money since the interest alone is more than you’d get in rent once you deduct approx 50% expenses.