Just for some background for all of you here, regarding the reliability of these tenants, as well as my goals for selling the property...
They have lived there for 5 years already; they are from Germany, where they themselves own several properties that they rent out, so they understand the value of a property, and maintaining it. They *love* the house!!
Anyway, last year when I visited the house to deal with a fence repair issue, I chatted with them for awhile about things, and Silke (the wife in the family) was talking about all their plans, the older daughter is graduating from high school and is going to community college for a couple of years, then planning to go to U.C. Davis (I don't recall what field); the younger daughter is still in high school, but plans to go to college as well. I asked "so you're planning to stay here for a *long* time, eh??" to which she replied "Oh yes, we love this house, the girls don't ever want to go elsewhere!!"...
Wow... ever since my dad passed away and I inherited the house, my plan had been to let these folks stay as long as they wanted; we retired last year and paid off *our* mortgage, so the $3300/month that they are paying for this house is *easily* paying our bills now; we aren't even collecting social security yet (waiting for 70). Anyway, once they moved out someday, I was going to sell the house at that point. It is 30 miles from my home, typically with nasty traffic both ways, and I don't really want to deal with it any more.
But that conversation got me thinking... if they're going to stay there for many years anyway, why not let *them* buy it, and stop dumping money into rent. So I made that proposal to them; I emphasized that it's *just* a proposal, if they want to keep renting, that's fine with me. Of course, I *know* what he earns, from when they first applied!! They can *definitely* afford it!!
So the whole deal is very low pressure; I'm not intending at this point to consider anyone else to sell to. And I have *no* need to squeeze every last dollar out of the house; it is likely to appraise at roughly $1.5million, and it will all be "found" money for me...
That doesn't change the other facts, though; I still don't know anything about how to do everything legally, so I will need other advice, as you have all recommended...