So you might find it tough to gain traction in investing with what you have to deal with in overcoming her objections. 

I say this because it was at a similar stage that we got "shiny object syndrome" where we got bored with the same old, same old of buy-and-hold. 

You need to spell out before hand exactly what are the objectives of the partnership, what happens if a partner wants to back out, how the income/expenses be split, etc.

It's an objective and subjective process.

Again, its a personal preference and depends on your goals and objectives.

I am still a little uncomfortable going into meetings with realtors and handling their objections/questions about short sales, but I've learned that you just have to have balls in this business.

All the rules and spreadsheets and guidelines are great but they are only half of the picture - the property itself - the hood - your goals and objectives - your exit strategies (note the plural) and on and on and on are just as important as the spreadsheets.

I dhave less objections to overcome from buyers and thus, get hgiher prices for my homes.

If you don't close, don't find a buyer, and all of your contingencies expire, he will keep your earnest money.If he's savvy, he will want a fairly quick closing, might object to assignment, will want short deadlines on the contingencies and will want a large earnest money.

A great investment 99% of the time depends on a smart acquisition.Always base offer prices on what makes the investment work for your particular objectives.