Can I sue venmo or cash app for policy changes without warning?

A lawsuit will cost tens of thousands of dollars. Check the terms of use. They undoubtedly allow VENMO to make changes such as this.

When I drop off a car "after hours" I always video the entire vehicle for just this type of situation.

You mean the same citation from 2012, or you still have hens and this is a new citation? If the latter, I think they can absolutely do this.

Absent serious injury, which is unlikely, you are entitled to a refund and maybe a coupon.

Can a party start discovery in an unlimited jurisdiction civil case before the case management conference?

Most judges want discover done before the CMC.

Unless the hotel was somehow at fault, they are not responsible.

IIm looking for a Federal attorney to do a pro bono for my brother?

Contact the Federal PD. No attorney here is going to reach out to you to work for free.

For some reason this got posted in Military Law. I don't know what category it should be in as I don't understand the question, but perhaps you can...

Yes you can be arrested for stealing from him.

Police used excessive force and threatened to charge me with obstruction and entered my hone without warrant

If the cops smelled pot, they had probable cause, but hard to say based on these facts. Present all of this to a local attorney and see if you have...