I am changing faucets, blinds and would like to replace SS kitchen sink which was there when we purchased home and after 2 rentals has gone thru a bit of bruising.my realtor who is showing the place dosent think i should bother but i feel if i am asking more and I am getting offers i should do these minor things.

Seeing the money that you can get might blind you to the lack of screening that your doing. 

Paint, carpet, blinds, etc.

They've also broken the microwave twice, I just replaced the water heater, they damaged the hard wood floors which they fixed, and all the blinds will need to be cleaned or replaced.I've had to fork over a few grand for an assessment a year and half ago for roof repairs since the dues were only really covering expenses and they weren't building up reserves enough for major repairs, hence the increase in dues also.

Red flags and blind spots when approaching sellers when you as the buyer are only interested in owner-financing a property (I'm focusing a majority of my capital in other ventures).The goal is to maximize free cash flow, close on a win-win deal, and hold this property as a LTR for > 10 yrs.Am I approaching this realistically? 

Reverse means that you know what buyers are looking for instead of blind searching.

Things that tell a criminal the house is vacant are for rent signs,  no curtains or no mini blinds in the windows, utilities shut off, yard not mowed,  and you get the point. 

Not knowing the financial health (or sickness) of any first positions on the title really is flying blind.

However, I don't want to operate blind to opportunity.We're just past the one year owner occupant requirement in our duplex hack.

With this being your 1st and his as well, it is the blind leading the blind.