I have read a legal agreement for an online virtual assistant training crowdsourcing platform, and I’ve noticed that the agreement has a missing period in it. Should I be wary of signing that agreement, since the corporation that created it has lacking quality control for something as important as a legal agreement, or should I relax and think nothing of it since, if anything, it’d invalidate the agreement? Or am I missing some part of the picture?
Scriveners errors (more commonly called typos) are quite common in legal documents and are unlikely to cause any legal troubles except in very specific cases where they fundamentally change the meaning or make the document ambiguous. 
These errors do NOT invalidate contracts.
Any conclusions about the diligence of the company involved would need more information to be accurate.
When should I be wary of signing an agreement with a company?