Can I force him to put me back on it

It is not really possible to take someone off the deed without that person signing some paperwork (or going to court in some cases). I would check...

Do I need to honor a purchase agreement that was not consummated for three years?

The answer depends on a few things you did not mention. It is possible you would need to cooperate but without reading all the paperwork it is not...

Who does the property go to if a spouse voluntarily does not reside in the house?

Not based on the information you have provided.

Will the house value have a stepped up basis because of my father's death?

I will change this to the tax section, you will get better answers in that section.

If you have the trust document take that to a local attorney for a review and advice. If you do not have the trust your first step is to get a copy...

Can a half brother force his father to put his name under the house?

Cant force him to do this. It does not matter if half brother lived there or not. Father can add anyone if he wants to.

The trustee of the trust is obligated to follow the terms of the trust and the law. This sounds a bit excessive if the estate is of "normal" size....

Does a non contract tenant have legal rights if the homeowner passes away?

He must be evicted, as it stands he has the right to be in the property as a tenant. The estate of your Aunt is the landlord and could be liable if...

Can a I as a tenant get reimbursed for a portable A/C?

Probably not. It depends on a few things not mentioned in you question. In any event you will not likely be able to buy a unit and force your...

How long does the interview take, does the client get the certificate or is it sent to the lawyer

Changing a trust can be as simple as adding one new account and leaving everything else the same or it can be quite complicated if you are changing...