Owner wants to stay as tenant

[Jonathan S.]

I'm under contract for a 3 unit, the owner wants to stay on as a tenant and is willing to sign a lease (initially the property was advertised as owner would like to stay but not required). I'm ok with this as I figured we could do a 1 year lease and would act as a good transition for both me and the property. The owner has come back and wants a 3 year lease slightly under market value. I've countered and agreed to his low number for a 1 year lease and he still insists on a 2 year lease with option to renew. Am I being unreasonable by not wanting the owner to stay for a longer period? I will be owner occupying another unit and I'm afraid of the old owner trying to take advantage of me being the new owner becoming a headache down the road. I would also like to note the existing owner is using his 2 bedroom unit as a 3 bedroom and using almost all of the common basement storage for himself.