Hi all, looking for a good and reputable third party management company to manage a few hundred units in Indianapolis.

There's nothing in the OP to indicate which party will be on title (either?

Even if you want to negotiate furniture outside of the contract you have to wonder, this raised an ethics question for you so would a third party see this a potential issue. 

If so I would simply write an addendum to the lease and have all parties sign

Perhaps a nice 1950's built bungalow.Always hire a 3rd party property inspector to give you an unbiased feel for the home.

The whole point of Real Estate Commissions requiring licensure is that the wholesaler is actually operating as a real estate broker, and hence as either an agent of one of the parties or an intermediary for both.  

Also, there was mold and so we got bids to have it fixed, they got bids that were WAY lower than ours,  our mold guy told us to have a third party verify the work and so our contract says that he would test before and after and approve the work.

Some realtors would tell you otherwise but from my 3 years evictions experience, rules/laws are stuck to the lease/contract and not to a new party entering the contract.

The expiration date of an offer can easily be crossed out and extended with the acceptance of both parties. 

Honestly, though the third-party services like Zillow, ect... have it down pretty well. 2.)