I am considering putting my 1969 Charger up for trade on the right multi property in my area, I paid 25k for this car a few months ago and now the value has doubled, it's a General Lee, what, if any, taxes would I have to pay if I did a straight trade on a property?

If alarms are battery-powered, there must be documented records of periodic maintenance.

The building has no house panel, so installation is going to be expensive any way you look at it.My question here is are the older battery powered detectors "grandfathered", or will I need to upgrade the detectors immediately.

My tenant used a battery jumper cable end and an alligator clamp to run juice from the overhead wires and around the electric meter.

ie tenant is responsible for checking the smoke detector battery every six months..

My other reason was battery life.

The residents of the area do not make enough money to charge rents approaching the mortgage and carrying costs of a middle to upper middle class home.  

But they charge really high interest rates.

(ie.. the doors open, the windows work, the furnace works, and smoke alarms are functional with 10yr batteries).  

When I charge $5 for a bulb or battery for a smoke detector don't complain.