Credit Advice

The credit limit increases will probably help your credit score since it will lower your credit card utilization. The new credit account may hurt your score a few points in the near term due to the credit inquiry but should jump back up in a couple of months.

It depends on many variables, like the previous person said, a lower credit utilization ratio may improve your score.  The set backs are the increased inquires put a small dent in your score (only a few points usually) but even more so, requests for new lines of credit and sometimes even credit limits that are too high may increase your "risk".  High credit limits are a sign of earned credit worthiness but also imply that you have the ability to access a lot of debt going into your mortgage, additionally, the request for new credit lines right before taking a loan are a red flag presenting the question, "why does this person need additional credit right before making the investment in a home purchase?"  If you have not already sat down with a mortgage broker, this is a good time to meet with one and discuss your credit score and these specific questions.