Landlord breach Of lease Agreement. My rights?
I moved in on Jan14th and in the 6mos lease a agreement we signed the landlord agreed to have the back yard put in within 90 days time. This a brand new house so the front yard is in but not the backyard yet. I just renewed another 6 os lease as of July 14 08 and with the same terms and conditions and original one including the backyard within 90 days of Jan 14,08. I have addressed this issue with him several time with 1 time being via e-mail.. He keeps saying the owner of the 13 houses in this new community does not have the money. I stated that's not my problem. Im suppose to have a family reunion in August and need the backyard in for this. I have expressed this to him but he doesn't seem to be concerned. Is this a breach of contract since this is in writing outlined in the lease agreement. He says I can brake the lease and move for his breach of contract what I I want to know is there any legal action I can take? Withhold rent until its in? Hire someone to complete and bill him? Go to court? I don't want to move I just want the yard in.
Please help
TY
T