Yes, start by interviewing a few local agents in regard to selling your home. You'll need to find out about any improvements or repairs you should make before going on the market. You'll also need to meet with a lender before you go on the market to discuss what your options are for your purchase.
Wisdom says; sell first use your equity or more for down payment then purchase. Some people may qualify for two mortgages at the same time; this is risky and needs to be thought through carefully if you want to consider this.
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