This past weekend, two of my tenants got their cars damaged (minor scratch on one, and good scratch on the other).

I have great credit and this will be the 1st property I purchase ever.

If I were you, id high ball everything , sounds like major damage to this house     maybe shoot for 60k rehab, high points on the hard money..... even if you buy cash at 30k +60k + hard money fees + closing costs ... you might be able to squeeze a 10 percent return out ..... if you have good contacts id say maybe It could work ... if you have only done this a couple times , maybe pass on this for something with a quicker turnaround time 

House would be around $150,000-175,000I have a great credit score.

There would be no refinance in this situation since there was no original financing to begin with.As for the credit cards, to get a single card with a 20k or more limit would be based on your credit history, but American Express has been known to be generous with initial limits and credit limit increases after 60 days of opening the account and then 6 months again after that.

The benefit of going solar at the same time as a roof replacement is that the Federal Tax Credit (currently 30%) applies to the roof as well as the solar system.

But, I need some coaching as far as financial strategy.I have an 800 credit score and no income (new RE agent) and my husband has a great W2 job but really poor credit due to some major credit card debt (long story).

There is a a leaky faucet in third floor bathroom which has created damage to second floor's bathroom ceiling in addition to some other possible pipe/water issue as it was mentioned that after taking a shower water was found directly outside of the bathroom on the floor of the third floor apartment .  

I'm just curious, if the basement were to flood due to negligence who would be responsible for the damages? 

I have excellent credit.