I would recommend just continuing with your business as you otherwise would, and when you have a couple new deals that those buyers might be interested in, offer it up to them first.But:- I wouldn't look for deals they specifically want, unless they are deals you'd be willing to do otherwise;- I wouldn't customize a house for them unless they were willing to put a large enough deposit down that it would cover having to remove all of their customizations should they not follow through on the purchase;- I would pre-qualify them as you would any other buyer, and not give them any preferential treatment.In other words, go into the deal assuming the worst case -- they will ask you to do a lot of customizations and then back out of the deal. 

Should that purchase and sale agreement include that the owner is to transfer to me her holding of the existing renters' damage deposit and last month's rent?

Any lender who tells you they are going to deposit the money in your bank account is a scam. 

Our lease break fee was 3 times the rent, mutual termination, paid by money order or cashiers check, and of course security deposit refund depended on how they left apartment, processed in 21 days. 

., former employer 401k) to a solo 401k are not reported on Form 5498, but rather on Form 5500-EZ, but only if the air market value of the solo 401k exceeds $250K as of the end of the plan year (generally 12/31);When funds are rolled over or transferred from an IRA or 401k to a self-directed IRA, the amount deposited into the self-directed IRA is reported on Form 5498 by the receiving self-directed IRA custodian by May of the year following the rollover/transfer.Rollovers (provided the 60 day rollover window is satisfied) from an IRA to a Solo 401k or self-directed IRA are reported on lines 15a and 15b of Form 1040;Pre-tax IRA contributions on reported on line 32 of Form 1040;Pre-tax solo 401k contributions are reported on line 28 of Form 1040;Roth solo 401k funds are subject to RMDs;A Roth 401k may be transferred to a Roth IRA (Note that from a planning perspective, it may be advantageous to transfer Roth Solo 401k funds to a Roth IRA before turning age 70 ½ in order to escape the Roth RMD requirement applicable to Roth 401k contributions including Roth Solo 401k contributions and earnings.)

THAT'S the sort of savings you're looking for, even if you aren't flipping.Look into FHA203k loans, which let you buy a fixer upper (including the rehab cost) up to a 4-plex, live in one, with very low deposit down.One problem with Wholesaling is: if they're great deals - why would you WANT to sell?

Was wondering what the best system for direct deposit is?

My major lessons on this one are: Be aggressive when you spot a good deal; If you can go above asking price and still make the deal work for you, do it; Consider offering large earnest money deposits to show that you're serious (I viewed property before delivering earnest money).

she also broke our lease by not keeping my deposit in escrow, and said she wouldn't give me my deposit back until she got another renter in the unit who paid her a deposit.

It's a card that you have to put down a deposit and that will be your credit limit.