In addition, my co-worker is being transferred in 4 months and wants to rent the same property from me after i buy it.

I assume you are using a title co. or attorney.....funds(no checks) are transferred to the title co.

After adding brokerage, transfer tax, title insurance as well as accounting for any capital expense to replace 20+ year old mechanicals/roofs etc.

This is area specific, but for me it is attorney fees, transfer tax, tax adjustments (county, school and village) title fee and title insurance on the buy side.On the close side it is attorney, transfer tax, tax adjustments, and realtor fees.My latest house ($120k purchase) cost about $8500 to buy and will cost around $11-12k to sell.

See if Washington still has a transfer on death deed. 

Once the improvements are complete then title is transfered to you at the new value of acquisition cost + the cost of improvements.Example - Sell a property for $300K. 

However POA (her son Im dealong wIth) already went to cIty hall and did Probate paperwork to transfer deed Into hIs name, whIch I have a copy of paperworK confIrmIng thIs.Home is an AS IS purchase (grandmas house) Closing in a month, I’m cleared for financing Seller VERBALLY agreed to letting me do some work needed already for closing (new roof).

I will have access to the MLS because my wife will be transferring her license to TX.

Although it was risky for him to do that much work before title transferred, he believed in your integrity to close the deal.

There have been cryptocurrency transactions recorded via blockchain, first one done in Vermont a few months ago, but there are so many components in a flip that using a cryptocurrency is not commonplace or practical just yet.