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medicgrrl is right. If I were in your shoes, this is what I would do:
A mortgage lender wants to see at least 12 months of no late payments. Some mortgage lenders require a minimum of 3 tradelines (could be credit cards or installment loans) for at least a year. Not all lenders have this requirement.
Mortgage lenders use a different FICO score - they use the scores below (see this thread: http://ficoforums.myfico.com/t5/Mortgage-Loans/FICO-scores-used-for-mortgage-and-where-to-obtain-the...) here are some highlights from that thread:
The FICO scores used for mortgages
Equifax Beacon® 5.0
Experian®/Fair Isaac Risk Model V2SM
TransUnion FICO® Risk Score, Classic 04
These are sometimes listed on the tri-merge mortgage report as follows:
Note: they have been commonly referred to on the myFICO forums and elsewhere as:
Some Differences from FICO 8