@Frankie Lowe can't close the deal because you don't have access to MLS or no comps? Wow, seems like a poor excuse! Sorry to be honest here but you don't need to offer an agent anything to do this for you. You should have an agent on your team that wants to work with you and earn a commission when you sell the property, however you don't have to have an agent to run you comps.
There are sites available to run your comps - it's not very hard. You can use sites like Zillow, but DO NOT the zestimate! Look for like kind properties within 1 mile of the subject property that have sold with in the last 3-6 months. Filters are available on Zillow to only show you these properties. What I usually do is take the most recent 3-5 properties and do an average price per square foot and then your subject property multiply the square footage by your average price per square foot - this should get you close to a comp price.
Remember this is ARV (After Repair Value/Market) and what people will pay if sold with an agent - 6-7% commission is already inclusive to the price. When you wholesale the property you need to make it appealing for an investor to purchase the property. ARV - 30% - Repairs - Assignment Fee = Offer. The 30% is dependent upon the area and type of the property; and repairs are subjective, but be honest with the owner and yourself on these costs. Hope this helps, and a deal is only a deal if it make money otherwise you need to walk away!
The old saying goes - "teach a man how to fish and he will eat for life! "