Yea, 3% is perfect if you're just looking for a generic increase.  

At the moment I'm looking to supplement my income.

Depends on the purpose of the business I would guess.I have a generic sounding name for my mgt co.  

Meanwhile the other tenants will be helping pay your loan (ideally partially supplementing the cost on your unit).  

Passive income stream to supplement current retirement income.2.

generic contracts are not a good idea..

What clever things could I put on my bandit signs and business cards instead of the standard and generic "we buy houses"?

I am a teacher and have two fellow educators who plan to working together to flip a house this summer to supplement our income in the short term with long plans of getting out of education sooner than later.

The BP calculators are good but I would be very wary of relying on generic Excel models that one downloads off the internet.

I would ideally like to transition fully into real estate investing in the next year, possibly by supplementing with a few traditional real estate deals once I pass my real estate licensing exam and get sponsored by a broker.