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.

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.

If not, perhaps newer, lower maintenance housing might be the objective.

A hot tub dealer might be interested in the spa, maybe they would pick it up and hold it then own it if it was not picked up and if it was picked up they could charge for the move, I'd give written notice of the paln and give them a few days, if they don't reply with an objection your notice and plan would be agreed, so word it in such a mannner.

I'm here to learn the legal and ethical way to pursue my objectives and goals as well as develop an efficient process in doing so. 

Knowing these will replace the subjective and often emotional decision-making process with an objective and analytical one, and may just save your arse.Overall on this deal, the numbers look decent.

But wholesaling success should not be your ultimate objective.  

If your objective of renting out an apartment is to get the highest rent possible within reason of the comparable market, it seems like it would be worth it to have a system in place to make the extra effort.As for planning that far out, I think some people actually do plan ahead this far in advance.  

Aside from the questions asked, if your main objective is to buy the house to rent it out at a later date, you have to look beyond seeing the property as a comfortable home and see it as an investment and what has the best return on your money.