@Scott J. in your shoes I would increase rents slightly($5-$10)and try bi-weekly.

Place a basket of disposable shoe covers at the front door and ask people to use them to protect the flooring.

I've been in your shoes.

If it is close to a family room or more separated bedroom I would lean towards a minifridge and microwave if it is close to the main entry to the house I would put some built in cabinets for outer wear and shoes and a bench for putting the boots on but then I am thinking new England and lots of little kids in a 5 bedroom. not sure if whether that would be accurate.

How would you like it if you were in his shoes and your landlord wanted to kick you out because you had health issues and nothing else? 

Understand you may get a reasonable inspector or one whose shoes are too tight and who is going to go by the book on everything and who will simply drive you insane failing you for unbelievable stupid things.Then decide if all of this is worth it.Gail

Put yourself in your tenant's shoes and keep the place in reasonable condition.  

The sink and faucet we kept as it made sense.New kitchen:In the picture you can see the base shoe from the bedrooms and living room. 

What landlords forget is to put yourself in an applicant/tenant's shoes. 

Basically, I stepped into the owner's "shoes," as it were.It's my opinion that you could just write up something like: "I, Dad, appoint Son, to act on my behalf as my agent regarding representing me in the eviction of Tenant, until I revoke this authority in writing."