Do not post your question repeatedly.
It is not uncommon to see the same question being posted over and over again, even after it has been answered by multiple attorneys. Usually the poster is seeking advice specific to their problem and is therefore not satisfied with a general answer. However, attorneys on Avvo cannot provide more than a general answer for various reasons, including the fact that they do not know all the facts of the case, they have not been retained for the case, and they cannot establish an attorney/client relationship on Avvo. If you want advice specific to your case, you must retain an attorney.
Use proper English, grammar and punctuation.
On Avvo, you are not texting a friend. Therefore, do not use abbreviations you would use if you were texting a friend. Also, make sure you use correct sentences. It is not uncommon to see posts where the poster goes on for half a page without using any punctuation. Use proper paragraphs. Not using proper English, grammar and punctuation makes your post hard to read and reduces the odds that you will get a response.
DO NOT SHOUT.
On the Internet, writing in all CAPS is considered shouting. It not only makes your post harder to read, but is considered rude. Remember, you are asking an attorney to take time from their busy schedules to answer your questions. Don't make it harder and don't be rude. I personally will not even attempt to answer a question that is in all CAPS, and will ask the poster to read the relevant part of a netiquette site.
Do not ask for a step by step explanation.
It is very common to see posts asking for a step by step description of what the poster needs to do to file something. Avvo attorneys are not here to give you a legal education. They are here to answer simple general questions. They do not have the time to hold your hand through complex procedures. If you do not understand what the legal process you are undertaking requires of you, then it is time to hire an attorney.
Do not ask for information that you could easily have found out by yourself.
For example, posters with immigration questions routinely ask for fees, and addresses to file a specific form. The USCIS website provides these on the form instructions and its website.
Do not ask for an estimate of how much it well cost.
First, costs depend on the complexity of the case and can not be determined based on a few details of the case. Second, different attorneys have different fees. Third, attorneys will base their fees in part of the cost of living where the attorney is located.
Do not disclose details that could be used against you and that can identify you.
Avvo is a public forum. Postings can be read by everyone.
Each post must be complete within itself
There are thousands of posts on Avvo. Even though an attorney may have answered one of your posts, they are simply not going to remember what facts you stated in that post when you post a followup. Any such followup must therefore be complete within itself. It must have all the necessary facts and not reference another post.
Do not ask how long it will take
How long a case takes depends on numerous factors individual to the case. It is therefore impossible to predict how long a particular case will take. Although USCIS gives estimates of how long it will take them to process the various immigration petitions, these estimates are just that, rough estimates. A case can take less time than the USCIS estimates. It can also take a lot longer that the USCIS estimates.