Depending on your experience level with construction, I would highly recommend researching local contractors and either pay one for consulting with you, or use that contractor to do the rehab. 

Depending on where your  at in Collingswood  you can get anywhere up to $1300.

Ultimately, it depends on your credit score/history and your investment situation.

Here are the ones I default to and adjust slightly, depending on the property class and area (jobs, distance, etc..)

There may be grounds to back out of this deal depending on the time frame stated on the contract. 

Since your refi LTV will likely also be 75%, the refi costs would unlikely be worth the small amount of cash you could pull out....all depends on what it appraises for of course.

If they dont come with the property, they're really hard to get and can cost up to 80k depending on the canyon. 

Depending on how renovated and the exact street, I would say $3,000-$3,500.

Depending on your experience can provide 90% of the Purchase and 100% of Rehab for your next flip.

The holding costs vary, depending on the type of financing.