Head over to bank rate or and take a look at the mortgage calculators, plug in the numbers and get an idea of what the property needs to generate to satisfy the intended debt.You still have to underwrite the deal for the non-finance expenses as well(typically 40-50% of the gross rents). 

(no banks involved)2.

While very lucrative - if you don't have enough reserves, it can really break the bank. 

Brokers have their place in the industry as do retail banks/mortgage bankers.

Does she or I call the bank to see if it's possible to transfer?

I use Buildium for tracking rent, fees, leases, and collecting online payments, but I don't use their reports for much, as I end up copying my online banking each year into spreadsheets.I've been using Rental Hero for the last hour and already impressed with it.

Lets say I die with $200,000 in the bank and right before I die I remember the time I had to go to court to evict one of my tenants..... that would be so sad... 

I wouldn't bank on selling within 2 years.

It'll range from - no problem link a bank account and continue payments to you have 30 days to pay back the loan or we'll default it.

If you want something that looks nice Article and Castlery have some great looking stuff without breaking the bank too bad ($2-3K range).