I inherited a house from my grandfather in 1990. The septic is on my cousin’s property, which at one point belonged to my grandfather and then he gave it to her in 1987. I am trying to get a mortgage on the property and they will not give it to me because the septic is on my cousin’s property. I don’t think she is going to agree to an easement. So my question is can this septic be grandfathered in ???