With that said, there are cases where investors have had success with 100% POHs, but it's more common to become a nightmare than it is a success. 

If the GP and LPs agree to use that 50% returned money to do a 1031 exchange, is it common for the GP to charge another acquisition fee on top of the refinance fee?

It is REALLY easy to under budget and over spend and in this market there is little room for error. 

It's a fairly common issue and thus a normal part of title work. 

I agree with Scott Mac that your interior has to be up to the standard of the others to demand common rent. 

There will also be common electric areas (hallways, outside lights) that will be in your name that may need deposits to put into your name. 

@Kelly BredlowSounds like the servicer has some explaining to do and you could potentially seek the compensation from them due to their errors and omissions but on the flip side you would never be able to use them again as I am sure they would love you after that.

If they do, you can also meet with those brokers and ask if they’re looking to hire new agents, what the costs will be and what kind of support and training you’ll get, etc.As an agent you’ll be working for or “under” a broker, so choosing a good one is important and can even make the licensing process smoother for you if you can find a good one before you take the classes and new agent exam.There are a lot of little technicalities like DBR (RI Division of Business Regulation) forms and fees, required Errors and Omissions insurance, etc. and you’ll need to have a broker for some of that so the sooner you identify one you want to work with/for, the better.

It turns out the only common/shared area of the house that I don't have an addendum for is their bathroom! 

Your best option is seller financing if you can get it but bear in mind that it's not common.