On another note using the same example as above - For cost segregation, I heard that generally the upfront depreciation it can generate (after having engineers appraise the building) is roughly 20%-30% of the purchase price.How would that work?

Yes - your share of income/losses passed through to you will be income less expenses which includes depreciation.A simple example below is you put $1,000 into a deal for 5% interest of a real estate deal.

Here is an example of one: https://www.zillow.com/homes/for_sale/157725954_zpid/33.423027,-111.886104,33.419346,-111.889537_rect/17_zm/1_fr/ 

For example land values make a significant difference in my neighborhoods, other places it could be garages, or bedrooms. 

Spend that money on where it matters most, kitchen, bath, fresh paint etc. 

Also, in the future have all your tenants sign a mold addendum which definitely protects you prior to such issues.I would force them out by giving them a proper notice from your LEASE terms, for example I can get my property back with a 60 day notice period- which is the proper notice time by law here in Georgia.  

The BP podcast regularly has guests who successfully wholesale real estate property and there are countless examples of success vs. one person who says it doesn't.Continue reading and educating yourself through the books that people are reading and recommend.

Using the same example from above they will finance up to $70k if they purchase and repairs are $77k or more.

For example, lights in hallways and around the perimeter of the building fall on you to pay, not the tenants.

Should we let him go ahead with giving the notice and proceed with the eviction (and then inherit the eviction), or should we wait until we close and file a fresh eviction?