Are you planning to sell this retail or fix and flip to an investor buyer? 

Educated buyers are only going to purchase a property that can produce a decent return, and that means total revenue minus total costs. 

Hi, I’m wholesaler who has couple buyers but still haven’t got deal yet.

What is good for a realtor is not necessarily good for a home buyer or investor.

I like to work more with listings, but do work with buyers.

I currently don't extra money to invest for that reason, I focus to sell investment rental properties to investors and thru this I will learn and make money than I will start investing myself.I will be dealing with a lot of Foreign CASH buyers that overseas and they will be investing in Miami.

I'd leave it as-is and let the buyer repair it, or have it repaired yourself if it's in the budget.

Take the time to learn how to talk to people, solve problems, analyze a deal, network with investors and cash buyers in your area.

The buyer had 10-14 days to inspect the property with a guarantee of 100% refund pursuant to Florida RE law. 

Usually go with non refundable down payment,  some type of monthly credit towards their purchase (only if negotiated ), buyer responsible for all repairs ( assuming home is in good condition when they are buying it) and if they are not able to execute at the end of the lease term offer an extension period with possibly a little more down payment.