I walked away from my home and filed chapter 13. Am I obliged to short sell the house?

Upon completion of your Plan, whatever you owe on the house will be discharged; so there would not be much point in short-selling the house ... nor...

Do you lose your $100k homestead exemption upon a judg. creditor sheriff’s sale of a home following the filing for chapter 7.

Your facts are confusing. Are you saying a judgment creditor (other than a mortgage holder) did a judicial foreclosure on your home after you...

I filed a Ch. 7, BK in San Diego County, Ca., however the lien is still against my house.

You have been discharged of the debt ... but the judgment lien was not removed. The good news is: you simply have to reopen the case and "avoid"...

Filling out a US Dept. of Ed. hardship claim waiver itemizing my income & bills, I have a car valued @ $7,500 will they deny me?

They will not levy your car; but they may deny your request if selling the car could pay the loan. Then again, there's no way for us to answer...

In my jurisdiction, the boat vested back with you when your Plan was confirmed and you would be free to sell it and do what you wish with the...

What will happen to my security deposit on my secured credit card in chapter 13

Cap One will likely close the account and they can use your deposit to offset whatever you owe them. Any remaining will be returned to you; but...

Post bankruptcy credit issue..

That your payments are not being reported is not hurting your credit as much as you may think ... they're not reporting that you have all that debt...

Is it possible for one spouse to file a Chapter 13 using the non filing spouses income?

Not only is it possible ... it's required (if you live together).

Is there any way to keep the car my mom helped me buy when she files Chapter 7 bankruptcy?

You do not want to sell the car because the Trustee can reverse that transaction and you wouldn't be able to exempt ANY of it. Your 704 series...

Is it ok to use a credit card right after filing Chapter 7?

You can try ... but credit card companies get notice of BK filings whether scheduled or not so your card may already be cancelled. If it's...