don't be penny wise and pound foolish, at a minimum have an attorney look at it before you sign it. Spending some money now could save you a ton of money later when you have a good agreement that deals with the contingencies you need. It is always more expensive to fix errors later than to do it right the first time.
The felony does not get dismissed until or unless the court approves it (so it didn't happen until you plead to the misdemeanors). It is when you plea and are sentenced that the bond is no longer in effect and until then you can be charged with felony bail jumping.
Go to the public defender's office IMMEDIATELY!! Your husband needs an attorney to talk to the prosecutor (who is the only person who gets to decide what he is charged with and what it will be reduced to. though the judge sentences him they usually go with the prosecutor on these cases)