Down payment funds just can't be from a unsecured loan (personal loan/credit card).

My understanding is that you will not get the tax credit and could only write it off and a regular capital expense.

While rate may drop they won't drop as far as the lowest rates that drove prices up so far.3) rent to price ratios have been going up, I believe beyond what makes sense for most people.

Also my credit score are 820 across the board.  

I want an actual full credit report. 

They may have credit from all their trade lines that they also don't pay until the house is closed.   

Sell, pocket $200k in equity, appreciation since they bought it, bank 25% for a new deposit in a year once they repair credit, buy two new second hand cars because they need them, pay off credit card debt, put a little extra to the side for increased rent payments for next 12 months, and reorganize to buy in 12-18 months... now they see the light, a chance to move forward, to not stress, and they're lucky the market increased so much... but if they struggle to keep it, struggle to make payments, then 10 months realize they need to sell, would they have as much equity, maybe, maybe not..  

How will this affect my credit?

I later heard but never exactly why, that the place was an absolute money pit and the buyer, who was very experienced, regretted buying it big time.It is interesting, but I ALWAYS do at least a bit of research on the prior owners and have found few "hard luck" stories, at least as far as either higher or high priced single fams go, they're by far the same story where the owner makes the financial decision to walk away, mainly due to the insane HELOC's etc they were giving out, like 125% of home's current value back in like 2006, so now they'll owe literally like $750k on a home that IF in great shape would at best fetch $500k, PLUS they trashed or semi-trashed the place, so they'd be really lucky to get $400k as is and often they may be business owners or whatever and have a relationship with a local bank who will then know "the whole story" behind the big hit they take to their credit score and not treat it nearly as harshly as the average Joe, who's practically banned from even entering the bank for years!

(Paul McGraw even helped me fix my credit, which was remarkably easy once you know how.)