Honestly looking at your situation I'm not sure I would recommend you do the taxes yourself,  change of accounting method (F 3115) isn't easy for someone that hadn't done them before these online software companies make things seem easier than what they are, they are good for less complex situations. 

The title company will handle clearing the title but won’t manage personal agreements.

A title company?

Next to impossible without a property management company or a ton of experience in rehabs.

But, the seller will never close a sale until the buyer releases that claim and withdraws the affidavit because a new buyer's title company will not issue a title policy and the new buyer's mortgage lender will not make a mortgage loan.Its not worth doing in this case but when real money is involved it is pretty effective.

Brett,I have never heard of that company but any reason why your not using an FDIC Bank or well known lender? 

I signed up with them about 3 to 4 months ago, then found out how expensive the loan was to get going with them and told them that I would self finance it instead but they had to cancel the loan first...they use a company called Special Financing Company..the person I spoke to at REI his name is Paul, he said he would take care of canceling the loan, but a month later I realized that they were pulling $599 out of my bank account.

Several were fully permitted and never developed because there were no buyers for the energy at the cost that was needed for the private companies to make a profit--and this was in a state with rolling blackouts during the summer. 

It is great to see what your company is doing in the Milwaukee market!

Any PM software should be able to do everything you mentioned.I am not a PM but I am an Accountant/CFO for PM companies and real estate investors.