Depending on how renovated and the exact street, I would say $3,000-$3,500.

Depending on your experience can provide 90% of the Purchase and 100% of Rehab for your next flip.

The holding costs vary, depending on the type of financing.

Could take 3-4 weeks just for that depending on the county and their back log. 

Houses on my street just 2 blocks away command at least $150 more in rent.  2) lead paint certs just depend on the property.

When I have already paid my full last months rent does this mean that I am entitled to stay and pay that last months rent, or is the last month pro-rated and refunded depending on when the 30 days ends?

That's a tough question and unfortunately the answer is it really depends.

You may also need to show proof of your down payment and closing costs, depending on how awake the selling agent is.

I do old fashioned way, buy paper and electronically research each one, we have been refining a list of about 5,000 for this years sale...

Depending on the lease you used your document may have a transfer of ownership clause or something similar which requires your consent.If you do not have a personal guarantee or some sort of material change or adverse change provision, I am not sure what recourse you may have with the sale of the business operation.