You can make minor adjustments based on the type of appliances (dishwasher, clothes washer and dryer, air conditioning, etc.) and the size of the rental.

I've had a tenant in a 4-plex who has his laundry destroyed with grease all over his clothes.

You may just want to have the sales contingent upon clothing after 1 year.

Try this:  (Source:  ervicemasterclean.com/blog/how-to-get-dog-or-cat-urine-smell-out-of-hardwood-floors)How to Get Dog or Cat Urine Smell out of Hardwood Floors ...Pour the hydrogen peroxide over the stain and then cover it with a clean cloth soaked in hydrogen peroxide.

If you don’t want a window in a bathroom area that gets damp from steamy showers or hot baths (room ventilated or not), best to just have them removed and closed in properly.

Figure out a personal budget (ie: groceries 5-15% of your take home, clothing 2-5% of take home, etc. account for EVERY dollar.

I like cloth for cleaning but there are a lot of different kinds of cloth, some more stain resistant than others.   

If tenant Vacated you can NOT evict them unless they left "substantial presence" behind such as personal items, clothes etc.

Having a shed, garage, unfinished basement, or other spots for housemates to store their bicycles, skis, seasonal clothing, tools, etc., etc. will help reduce the clutter in the house.

Be careful cutting in around the ceiling and use drop cloths.