Now that I'm crunching the numbers, I don't know if I made a huge mistake buying these properties with debt, as it looks like the cash flow will not be that high, and the area has already appreciated so much that I wonder if it will continue to appreciate.

The seller is asking to give me a response by Monday the 14th at the latest after "crunching some numbers".  

I found that it is damn near impossible to make the buyers list work when it is to short or you are in a time crunch.

I'm trying to get the hang of crunching numbers and what to look for. 

The term, like other "hacks", does bring back memories of 2600, Captain Crunch and Kevin Mitnick etc..but the word has evolved.

I'm not familiar with the market up there so I always recommend finding a great agent through referral or here on BP who can assist and crunch numbers with you. 

Network and get to know actual wholesalers - people who find the best deals for you4.listingbook.com - get hooked up on it by a real estate agent and updated for the NEWEST listings////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////LOOK AT THE DEAL - Is the property worth crunching numbers on?

You could crunch the numbers from there to see if you money could come back out.  

Cap Imp vs Repair Expense IRSI'm in the middle of doing some 2017 tax crunching last minute so of course I am on Bigger Pockets forum instead of finishing up my taxes :-)Anyways here's a useful tip on Cap Improvement vs Repair ExpensesMy strategy has always been to increase regular maintenance, repairs (Repair Costs) and spread out costs over time instead of the hands off approach to defer maintenance into larger Capital Improvement expenses. 

No disrespect to the one you have, but he should be feeding you all this information and more, and making sure to crunch the numbers for you before he ever presents a property to you.