It might run you $2K to draft a comprehensive agreement but then it takes out a lot of the concerns/issues.

Just my 2 cent.Thank you Laszlo for the comprehensive answer...Perhaps I should stay in Berlin :)

Some things as a startup landlord you'll want to keep in mind when selecting a software:Does it have integrated payment processing solutions, ACH, credit card, etc.Does it provide you background screening reports, and how comprehensive and accurate are those reports.Does it give you a place where your tenant can login to make payments and/or view their account.There's a lot of great packages out there that would work well for 4 units and grow with you.  

The longer the economic period the more comprehensive the valuation can be and probably should include the future sale or disposable or even a salvage value being brought back the the present value together with the stream of income.You will need to construct pro-forma statements building your best estimation of income and expenses for a vacant property where actual numbers may not be available.

Do you have the last two years comprehensive operating statements for this property?

Regarding BP, its absolutely the most comprehensive REI website out there, it's just great!

A home inspector will be able to provide you with a comprehensive look at the property (maybe $450-600 for a 4-unit).  

@Harold Smith If you cant wholesale after this Ive got nothing for you... is a pretty comprehensive book.

Looks like you're all set because @Chris K. gave you a solid, comprehensive answer.Let us know how the deal goes @Anthony Lee - If you want to just do a quick preliminary search yourself, here's another BP post that tells you how:https://www.biggerpockets.com/forums/48/topics/136786-do-it-yourself-title-searches

Spot zoning goes against zoning best practices as your municipality's comprehensive plan probably specifies that area to be all agricultural.