All about garages.

Hi I've searched everywhere and this forum seems to be what I'm looking for help on. 

We moved into a decent size house we may possibly be purchasing in a couple years, the house has had many upgrades overtime and alot was done for 6 months before move in date. Now the garage attached has a badly cracked up cement floor and the building is crooked 3-4" sunk in on the left side. The current door on it must be the original it's in decent shape but the tracks and rollers won't handle the manual opening and closing of the garage door it's visibly crooked aswell and it currently covered with a canvas tarp, not that the back attached to the house has a crack in it where we've patched a few times as the water leaks near the electrical. The land lady told me to take a budget of $1500 get a new door so we can have some shelter for our outdoor stuff for the winter coming up. Now I've talked to a few good sources and they recommend to just tear the building down remove the floor level it out and leave it or decide if and where a new garage will go....

Any input will be MUCH appreciated!! 

Thank yous. 

In reply to LINDAGE :

Why would you consider buying it knowing it wasn't built well in the first place? Only to then have to put all your stuff somewhere else for months while the structure/sunken floor etc. is repaired? Ask the landlady to send someone to replace your door with something that works and look for another place to live?

In reply to NOT A TA :

Because in the area we're in is difficult to find a decent place similar to what one seeks and location. The house is great considering, the garage is another story though that I thought I could manage in time. (It's a possible purchase in the next couple years) the landlady continues to repair and maintain/update things here or there but there isn't much to do now just outside work. 

The garage is sinking, there really isn't a band aid for that.

If the whole building us sinking away from the house the garage door frame isn't a square anymore which is why it isn't working. You can rehang the door to sort of work I guess but the level of sinking you describe means it'll last for a very little time.

That much sinking is very very alarming, like....sinkhole under the house or a blown water main level of alarming

Is this a purchase or rental? The landlady thing is confusing me.

In reply to itsarebuild :

It is a rental currently but we've spoken about purchasing in a couple years. Honestly I'm for the house I'm just sort of winging it with this garage as something eventually has to be done.