Can my 17 y\o step-daughter live with me?

Sounds like you are neither custodial or non-custodial parent. If that's the case you are courting trouble. Talk to an attorney about the best way...

Counting 7 days for response to Motion for summary judgement.

Read the Texas Rules of Civil Procedure, R166(a).

Financial support while waiting for court?

Your attorney should ask for temporary orders.

Our condo association is voting concerning restriction of renters. Proxys are not accepted. Is this legal?

Look first to the CC&R's. What did you already agree to?

Is there a scenario that an adoption takes place with out a home study? I have sole conservator of the child mom will sign.

Has to go through the court. If everyone agrees then it should be fairly straightforward. Make some calls to adoption attorneys.

Can we make a written agreement so she cant keep him from me?

You cannot make private contract for visitation rights to a child. Has to go through a family law court. Consider taking your concerns to an attorney.

You have access to three law schools in the metroplex- each will have a library. Start there.

Do I need A lawyer?

Unless you want the problem to keep growing then, yes, seek professional help.

What can I do to have the father of my unborn child released from any responsibility including financial support?

Can't do anything until baby is actually born. Highly recommend that you consult with a family law attorney in person about your concerns.

My son baby's mom is refusing to put him on child support. I have told him that he need to put himself. What do you think?

He is, indeed, setting himself up for owing a large amount at some point down the road. He should talk to an attorney about adjudicating...