Clauses in a contract

[Kar Sun]

Greetings all.

I want to add several clauses to my contract :

1. Unacceptable conduct, such as engaging with multiple neighbors and disclosing terms of my contract to parties other than creditors or banks and libelous behavior(basically engaging in gossip with 3rd parties).

2. Pros and cons of adding early termination clause in a contract? I currently do not have one. If I let them go can I keep the security deposit until I find a tenant?

3. Tenant responsibility for all appliances. I let them use the appliances and since they use them they are responsible to fix them. That should give people incentive to take a good care of appliances.

4. Charging a fee for a technician visit for any appliances diagnostics.

How do you set the expectations from the start to avoid people with incredibly high expectations?

I am sort of tired of "I am a good tenant because I pay on time" so do an "X" for me right away; basically treating a landlord as a room service. 

Completely not interested in having jerks and dealing with them.

Please do not advise to have a property management company as I will not.

I only have a few units and I have a full time job so this is a passive income.

My rent prices are slightly below the market value.

I live in Tennessee.

Thanks