Multi family investment already has tenants. Need help!

[James H Webb III]

I am looking to purchase a duplex in the middle tn area. The lady I am purchasing it from currently has a tenant in each side. Ideally I would like to co-sign with my sister on an FHA loan on this property and use it to get us both started on our investment journey. The numbers all check out and I have finally put the fear behind me and I am ready to make an offer but I don't know where to go from here. Should I look at a different form of funding until the tenants leave since you have to be the primary resident on an FHA loan? If so how do I tackle getting the tenants out after I purchase? They are paying $650 per door in an area that is renting for $1400 per door and I need to make a move. Any and all help or advice is greatly appreciated!!!