I don't know about anyone else here, but NO ONE has ever told me "you offered too much".
If I'm your Realtor, I don't pay retail. However, sometimes what you can get are concessions, extras and items that add value.
If you want someone who negotiates for you like the proverbial "junkyard dog", hit me up......
I would get consultation from your buyers agent as far as what to offer. What to offer would primarily be based on the other properties that have sold in the immediate vicinty that are comparable. If you would like to me to weigh in on this specific case, shooot me an email. My contact info is on the website below. After all, NE Philly is one of our target markets !
Coldwell Banker Preferred
Licensed PA Realtor