If so, it will be good to get the type that has the on and off heat feature.

This figure includes allowances for heat, electric and any other utility that the tenat is required to pay and this is deducted from the FMR. 

You have to consider insulation and heating/cooling too.

- Usually a 5 unit with a boiler means that all the units share the boiler heating system.Which specific utilities in which units are paid by tenants vs shared?

We have a single HVAC system that heats/cools the entire home.

But there are some basic bid issues owners are often unreasonable about:1) There really isn't time to get multiple bids- No heat during winter or ac during summer can often result in a municipal ticket or worse2) The job is too small to get bids- Estimated cost is $700 - how is saving 5-10% worth the time getting bids?

I would allow for differences of opinions that are amicable, and even sometimes heated, as long as names and profanities aren't used.

I incorporated smart home technology, such as automated lighting, heating, and security systems, which is highly desirable in today’s market.

Avoid any self-help eviction tactics like changing locks.Maintenance: As a landlord, you’re responsible for ensuring the property meets basic health and safety standards, including working plumbing, heating, and electrical systems.Inspections: While there are no mandatory inspections required before renting, your property should comply with building codes.

For example,  providing a heating source for your tenant is your responsibility as the landlord.