I see a few issues already.
First, when adding someone to the ownership of your property, the Grantee should be yourself and the new person. There shouldn't be any language about transferring one-half interest. Instead, you, as Grantor, are transferring all of the property to yourself and your bf.
Second, if the consideration is going to be $15,000 then there are probably going to be transfer taxes due that must be paid at the time this deed gets recorded. The county clerk or county register won't even accept the deed for recording without the transfer fee.
Third, if there is a mortgage on the property then you're going to need the consent of the lender before you can make any transfers of the property. Doing this transfer without their consent is a violation of the mortgage. And when you ask the lender for their consent they're going to want the mortgage modified to add your bf.
Fourth, I don't see any formal legal description of the property. Were you planning on only using the mailing address?
Did the attorney prepare this deed for you or did you do this yourself?