I have the choice of restoring the original roof, or going with a new asphalt roof. 

Pull leads from any source you can and it is a lot of pavement (I don't use listing sites even though I get 5 calls a week asking me to).

I'm still learning the market here and haven't had an opportunity to hit the pavement.

Much of my success has come from traditional door knocking, hitting the pavement nearly every day.

The roof will have to be completely removed and probably re-framed to support heavier asphalt shingle roof.

Recently i pound the pavement and use drop cards.

Some flippers can make a lot of money, some take a huge loss on their first deal and never try again.I know a large investor (several thousand units) who started with an asphalt paving business.There, fortunately or unfortunately are infinite ways to be get started and be successful in real estate. 

If it is asphalt shingles and they are bare or curling, replace them. 

There is not plumbing, but there is a roof that needs replacing $15k, and the pavement needed to be redone as it was previously not maintained $20k, electricity for lights $85/month, and the security camera $350, plus installation, plus ???

.#3 Contact Local Contractors for Labor PricingCall local Subcontractors and get budget pricing for common repairs on your typical rehab project.For example, call a roofer and ask what their average cost per Square of Architectural Asphalt Shingle Roofing would be on a 1,500 sf house, with a 6/12 pitch.Note: Some contractors will be reluctant to share pricing without seeing the property, but tell them you are just looking for a rough budget number you can use on future projects.#4 Compile Your Prices into a Spreadsheet or Estimating SoftwareOnce you start to get a better understanding of Labor and Material costs you will want to store this data into a spreadsheet or software that you can use to help you streamline the estimating process.The Book on Estimating Rehab Costs comes with a spreadsheet that you can use to help you populate your own database of labor pricing and material pricing.