This would prevent me from dealing with paying any closing costs versus paying two sets of closing cost for a simultaneous (double) closing.

In MA you can be a licensed ageant and not practice.

Might not be the answer you're looking to hear @Nik Moushon, but really just comes with practice, familiarity with the code, and the build costs.

They sound great and get you enthused, but offer nothing of substance that you can practically apply to get paid. 

In addition to Matt's sound business practice of fixing the home, most states which includes mine GA, tenant law says; landlord may not contracturally transfer responsibiltity of maintenance to the tenant, its always the responsibility of the landlord.....   

I always practiced that you can not deny a tenant's pet if that said pet was a certified "service animal". 

The "re-inspection" took less than 15 minutes....It is my opinion that if I am gonna pay you $900 for an inspection, you better get your butt up on a ladder and test the trim to make sure there is lead paint before you decide that I need to hire a de-leading contractor for $1000's to deal with microscopic areas of "flaking paint".Has anyone else felt like they were getting ripped off by these people or is this just common practice?

If a common practice in your market that's likely the easier way to go.  

It was a huge practice space for musicians and it was bought up by a developer and he did the VERY uncool thing of booting every artist out of it. 

They spend everything they've got to make their first purchase so they have nothing saved up for the unforeseen issues that always pop up and they're still practicing the same bad financial habits they always have.It's beset to have a strong foundation with good credit, an emergency fund, etc.