A well written management contract should clearly spell out what is expected of both the PMC and the owner, to PROTECT both and avoid misunderstandings.

This is how we protect people from getting taken advantage of on this site.

The builder's PSA is going to have clauses protecting them in the event of unforeseen delays, but if the delays are bad enough, they might be willing to compensate a buyer on a case-by-case basis.

So buyer agency actually protects both buyers and sellers.

The fair housing laws protect anyone who is handicap from discrimination.

The LLC gives you better asset protection - but you can’t use a residential loan to borrow in the name of the LLC.  

If you have a handle on the value of the house, can make an offer that protects you and adhere to the contingency deadlines like inspection and financing,  a buyer's agent does nothing but waste your time and cost you thousands.  

It provides liability protection, and in certain states, you get the added benefit of privacy.

It is cheap in the big scheme of things and is an extra layer of protection.

This shows your intent to purchase and protects the wholesaler should you get cold feet and they're stuck losing their front-side earnest money, or heaven forbid, actually close on the property.