@Steve Bracero I met the tenant after closing and took pictures of unit conditions.
I decided to raise their rent to $925 + $100 water garbage sewer per month. I waived the pet fee. I took their words when they say the reason they got the dog is to keep burglars away. I maybe wrong doing this, but they have had their dog for 3 years there. I didnt see any 'pet' damages in the unit. It was pretty clean too.
I also ask them to continue maintain the yards for the whole duplex. Their lease with me starts September.
When I sent them the notice of rent increase, i stated my reasonings.
They countered back saying that their unit condition is worse than next door. However, i managed to get them to understand that their rent is 30% below market because of the older condition than next door unit.
I also mention that If they want me to put new carpets and paint, they have to move out temporarily. And when they come back, rent will jump to market price $1200. They have A LOT of stuffs in the unit. There is no way they can just temporarily move out and move back in.
They accepted my argument and signed the lease.