The repairs seem extensive including bad insulation, minor roof repairs, faulty structure, floors are uneven (home is a little over 100 years old) galvanized pipes, old water heaters, among other among issues. 

Now we're in a breach of contract, with only $3,500 deposit at stake on a $333,500 package.Gave an extension of 2 weeks to hammer out some type of deal agreeable to all parties involved.Cut 2 properties from the package ($160,000),  Buyers came back with half-down and Seller agreed to finance the other half for 1 year with guaranteed monthly income.The Buyers will have enough time to finish repairs, get all units occupied, obtain permanent financing, and everyone comes out a winner.Hard to make up 7 months of your life.

I foresee this being an issue because I'm collecting an income from the property.

Investing in renting apartments to tenants, maintaining their units, and collecting rent yields a lot of money.

At some point the borrower fell behind and collection efforts failed, however FCL never took place.  

They want their ROI now without realizing that they might be collecting their yield in the form of return of capital, not return on capital as veteran investor @Bob Bowling pointed out.

Typically 10% of collected rent.  

TOOLS REQUIRED-Post hole digger, long handled pointed shovel, baulk-line, measurement tape, power tool with plastic cutting blade, extension cords, concrete combination tub, 4' level.

I have been managing properties for over 7 years and have always taken the position of if the tenant can't pay, evict them. This time, I have completely deviated from my rules and through discussions initiated by the ...

I responded and asked for a custom agreement because i live downstairs and can collect the rent myself and possibly handle maintenance ;)...did not hear back!