I realize these answers could easily be found online, but I'd like to hear from you all too as I learn the process.

@James WiseAnother great idea is if the city has online code violations that are available to the public to vIew .look up code violations on propertIes that are distressed wIth burnout landlords

Got everything submitted, on-line account established and thought everything was in order. 

We just took on a totally renovated property that a company has under contract for $131K 5 bedroom 3 bath, great area of town!

If your total monthly rents $750 x4 = $3000 are 1% of the purchase price then general its a good starting place to evaluate a property so you will cover your costs.

Perhaps I'm a little conservative, but that 15% total gives me peace of mind.

They have their clients use quickbooks online for tracking the financial data. 

The issue is this: we used to pay the same as every other property owner  before we were forced to do online booking.

3) Where can I search for multi-family properties online???

You should be going to an attorney and CPA and speaking with both professionals to make sure everything is done correctly from the beginning.I have seen quite a few boilerplate legal agreements from those online websites.. hate to tell you.. they are all terrible.