Sorry for your loss, stay true to your heart, pray for peace and all will work out.
In Texas, if there was no Will and no living spouse, the house will have to go through Probate. You will need a Probate attorney to take you through the process, and each sibling will have equal claim/share to the property. During probate, you can buy out the siblings for their share, or sell the property and split the proceeds equally.
I have purchased property through probate, and can assist you in a quick cash sale if that's the path you choose. Each sibling will need to sign off on whatever you collectively decide.
Good luck, and God bless.