It always takes longer, costs more and has more challenges than I originally thought.

If a large repair or tax/insurance hike were to happen with a multi-unit than you at least have other units cash flowing (usually) which helps stabilize such unexpected costs. 

Also your permitting process, type or land, grade of land, if underpinning is required will all play a factor into your cost. 

Cash flow approximately 350 a month.Option 2: Use the cash to buy land to build a 6 bed 4 bath duplex, all in cost approximately 300k/330k. 

They are a bit undersized but perfectly suitable for 1 bedroom apartments and the slight increase in costs is far less than the costs associated with venting the units properly.

Attorney’s Fees; Collection Related Costs; Jury Waiver.

Inherently the steps are the same as if you were purchasing with financing save potentially less closing costs and ability to close sooner (if needed).The terms of your offer (ie -contingencies, closing cost splits etc) will determine what is different. 

A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant specializing in real estate taxation, business taxation, financial planning and tax planning.Consider working with your accountant remotely to expand your options.I would also recommend looking for an accountant willing to work with you throughout the year.

A) it controls my cost.

Does a cost seg or bonus depreciation actually help you in any way?