Increasing your portfolio increases your income (offense) and paying down/off rentals reduces your debt exposure and your debt : income ratio (defense).

I think it would be best if you could be debt free within the next year or two, then that would allow you to save more cash and go on the offense and now try to bring in some cash flow which would go right to your pocket.

@Chris Williams No offense but you contradict yourself.

No offense to the elderly (and I'm 64 years old myself) but dad doesn't seem like he's playing with all his marbles here.Unless you like drama, rent to the couple.Gail

I just did one for a substation on a Florida property and there was some money exchanged and of course the utility company had the obligation to indemnify the owner and had maintenance obligations in addition to keeping the area "pretty" so it wasn't offensive to tenants or prospective purchasers in the future.

I take no offense but want to invite people to look at the numbers. 

@Sumana PotluruNo offense, but "point of view" has nothing to do with someones worth, It has to do with the value they bring to the table.. you are asking a Broker to find you a property that is not on the market and when he does find it, find it at a price YOU can make money on it or be able to increase its value so that YOU can make money.

Is it considered offensive to mention anything regarding a seller's purchase price or profits in a negotiation?

I feel that that number may be offensive.  

Failure to do so, could lead to a monetary fine.If a landlord is found to have retaliated against a tenant in response to the tenant’s exercise of his/her rights, a landlord now faces a penalty of $2500, or $7500 for a repeat offense.