the toilet flushes, the sink works...nothing leaks. 

For toilets, I'd been using the 1.28 gpf type, but a fantastic .8 gallon per flush toilet is now on the market, it's called the Niagara Stealth, and it should be purchased at Home Depot(otherwise you're gonna pay like $50 or more to ship it somewhere.)

Just replace the flush valve.

I'm trying not to take out the original trim and am thinking about 1/4 inch drywall.Also, the shiplap walls are not perfectly flush...so I'm expecting a bunch of floating of mud. 

Biggerpockets is definitely flush with information and it's a great time reading through and staying connected, whether it be with people in your own market or others it's always cool reading about other people's successes.

I drive over there and the tenant says "Something weird happened, it was at the toilet rim, I went to use the bathroom faucet and when I turned the water on, the water in the toilet tank started to drain to normal level" so after he said that, I flushed it again and it was acting completely normal now, any ideas?

Therefore, no system replacement costs are included.Fire sprinklers can be supplied by a separate water connection, with a toilet connected to the end of sprinkler piping to ensure that the piping is occasionally purged by flushing the toilet to prevent stagnant water.

I was also thinking of putting closing costs as a credit since I might not be that flush with cash depending on cost of house.

Who knew that it was a bad idea to try to flush golf balls, or wet-naps, or feminine products (right Sylvia?

Also the septic may work fine as in the toilet flushes fine, but the septic field is tested with die to ensure that liquid doesn't seep through the drain field too quickly.