Dee - as someone active in your marketplace, I can tell you that it depends on what price point and type of home you're considering. At more affordable price points (like starter homes), it is a surprisingly competitive market for buyers. Those would be more difficult to negotiate the seller paying additional costs, but not always impossible. But, here are some ideas worth exploring:
1-Read your lease, is there a buyout clause?
2-Just ask the landlord if they will let you out of the lease if you are buying a home.
3-As a buyers agent, I often coax the landlord into letting tenants out of their lease by offering to cover the commissions myself to re-lease the property.
Anytime there are people involved, there's room for negotiation. But, wait - have you found your house yet? You may decide to buy something that is being built, and won't be available until next January anyway. Who knows.
Make your contacts now with the parties you plan to use - a real estate agent, lender, etc. Get your footing in place, and let them guide you through the best way to handle this. If I can help, give me a call!