I'm not sure specifically about 'pepper meats tonys daughter' fanfiction. It might be a rather unique or niche concept. You could try searching on popular fanfiction websites like Archive of Our Own or FanFiction.net. They have a vast collection of fan - created works, but it may or may not include something with this specific plotline.
A possible plot could involve Pepper and Tony's daughter being thrown into an adventure together. They might start off not getting along well, but as they face challenges side by side, they start to see each other in a new light. Pepper could use her skills and knowledge to protect and guide the daughter, and in the process, they develop a deep friendship or even a mother - daughter - like relationship, especially if Tony is absent or unable to be there for his daughter for some reason.
Yes, in 'echo 3 true story', 'echo 3' is likely related to the 'true story'. It could be the name or identifier for the events that make up the true story.
It's hard to give a definite answer. Different comic universes and storylines handle the inclusion of Echo differently. You might want to check popular comic franchises or search online for more detailed information.
In most comic versions, Echo isn't deaf. However, there might be alternate or special story arcs where this could potentially be a trait, but it's not a common characteristic.
Sure, Echo is portrayed as deaf in the comics. This trait plays a role in shaping her personality and the challenges she faces throughout the comic series.