Hi there,
It can be annoying listening to pushy sales peolpe, but please don't let that put you off brokers, as a good independent
mortgage broker can make a huge difference in helping you get the best deal out there to suit your circumstances.
As for your questions:
Your credit rating sounds as if it shouldn't be a problem.
The 15% deposit is sufficient for obtaining a mortgage, obviously the more of a deposit you have the better, but 15% is OK and should mean you have a reasonable selection of lenders and mortgage products to chose from.
As for one of you "leading" on the mortgage, I'm not exactly sure what you mean.
One other thing to consider, depending on your cirumstances, is the governments first time buyer schemes that could assist you with a deposit at a very low interest rate, and by incerasing your deposit from the government schemes, this could lead to you having access to much cheaper products as the loan to value (size of mortgage compared to value of property) would have decreased, which could lead to much cheaper monthly payemnts.
As you have stated you are quite new to this, I really would suggest having a chat to a professional.
I would be more than happy to have an informal chat at no charge should you wish to discuss your options and hopefully leave your opinion of us mortgage advisors somewhat improved.
If you have any further questions either message me on here or give me a call on 0845 230 9876.
Hope that's been helpful.
Dan