Second, those that are sharing a home with you must agree to your house rules.

I agree with your last statement "...higher than inflation of 3-4%  then I'm good".  

Is that why you're asking about a commercial real estate/investor in wine country?

I agree with @Nick Watkins on this. if you are worried about " fair price" hire an appraiser, few hundred dollars, and let them tell you and your sister the fair market price. then deal with this through the family. if you list the property then you are dealing with realtors, closing fees and taxes.

I agree with my colleagues an agent will easy the search because they can understand what you are looking for and focus on narrowing the search for you.

If you are really going to settle on this property - you could ask the owner to give them a 60 day notice of rent increase - send this notice effect September 1st, (don't miss this mailing) raise the rent to the number you want - if the tenant agrees to accept the rent increase - great - if not - you would be in a position to eviction them based on the non-payment of the increase or they will just move - you may want to say in that increase rent notice that there are plans to improve their living conditions, supply new appliances and whatever you plan to do.Do this will help get what you want without vacancies and still have a tenant who will be happy to comply to the increase.Cash flow is King - don't kill the King.Charles

I don't agree with your realtors comments but I do think you should get this letter within 24 hours.

I agree with J Scott .

Once you find what you're good at, become REALLY good at it and use it.Completely agree with this.

I agree with Patrick M. that as the one who cooks, I hate electric.