@ghirakami , on a different subject, please can I suggest you talk to an estate lawyer or tax professional on this -- because since you are co-owner, and if your mother intends to pass the house to you, AND you sell the property you will be hit with an unexpected tax bite. Because depending on the type of joint ownership, it may not be an inheritance to you and thus will be subject large ( could be ) capital gain tax. Please consider discussing this appropriate professional , as suggested above.
