Should I wait to have these items done before signing the contract (could take weeks) to give time for home inspector to inspect the property (and risk another buyer over bidding me), or just sign the contract and have the home inspector come when everything is done?  

It was under contract 2x.

What do you smart people think?

The risk of waiting is that some other buyer can swoop in at anytime even in a slow market and get that property in contract for a price that you would've been willing to pay.

TO PROTECT YOURSELF, YOU SHOULD STIPULATE IN THIS CONTRACT THAT BEFORE ANY PAYMENT IS MADE, YOUR CONTRACTOR IS REQUIRED TO PROVIDE YOU WITH A WRITTEN RELEASE OF LIEN FROM ANY PERSON OR COMPANY THAT HAS PROVIDED TO YOU A “NOTICE TO OWNER.”

If the wholesaler has it under contract, why would he not release the address?

They intercepted the contract somewhere, duped the attorneys address (added a 1) and sent out wiring instructions.

One of these are requiring me to replace the roofs on 2 outbuildings on the property I am purchasing within 30 days of binding coverage and want a signed contract with a roofing company prior to coverage.

When negociating a Land Contract.

Currently have a wholesale deal going under contract but I can't seem to find an attorney in the Charleston area of South Carolina who can look over/revise, purchase and sale agreements, as well as do closings and title.