Here are the numbers I posted when asking for advice:Asking price: $50,000Tax assessed value:$57,500Down payment: $10,000 (20%) -- seller paying all closing costsRehab: $1,000 (really just needs floors vacuumed/scrubbed and stove + fridge)Total initial investment: $11,000Projected rent: $775/moVacancy factor (10%): $77.50/moTotal Income: $697.50/moProperty Management (10%): $77.50/moMaintenance (10%): $77.50/moLegal: $25/moTaxes (capped at 2% of purchase price): $83.33/moInsurance: $45/moTotal Expenses: $308.33/moNet Operating Income: $389/mo --- $4,670/yr30-year Mortgage at 5.5%Debt Service: $227.12Net Cash Flow: $162/mo --- $1,944/yrCap Rate: 9%Cash-on-Cash Returns: 18%I ended up purchasing the property for $47,500 and paid closing costs.

The product is similar every time you are selling so less hidden surprises to derail a deal and you can scale volume closings.The referral thing you want to know how much they scrubbed and qualified the lead.

A combination of scrubbing/lots of sealing primer/ozone machine might be the ticket. 

It will scrub the list for the do not call list.  

I would imagine that there is a way to scrub your list.

I'm thinking about buying a name list then plugging the scrubbed names into a predictive dialer.

These areas get the most soil, and therefore need scrubbing from time to time.

I paid one of my guys an extra $50 to pull out the carpet and scrub the wood floor underneath it.

(Most of the title companies I know of scrub telephone numbers against the Do Not Call List which is cool.)

Here I am sure you know what I did and dealt with, almost all the rehabbing by hand, acquisition, valuation, record scrubbing, rental, management, essentially anything an investor can do is what I did.