They can identify potential investment opportunities... not to mention all the tenant/landlord laws, eviction process, security deposits, accounting, end of year tax statements etc. lots of pitfalls to be avoided.wish you success in your ventures!

Big things is be realistic on timing and maybe provide a mover and or storage unit deposit as they may not be able to figure that part out on their own.

Each room will have a separate lease on it with a separate deposit following normal property management practices, and like you said, the leases have different start dates. 

The repayment terms for a 401k participant loan are equal monthly/quarterly payments of principal and interest (typically prime plus 1%) over a 5 year term (longer if used to acquire your principal residence).Please note that if you take a full $50,000 and then pay back the loan, you can't take another $50,000 until 12 months after the first loan was fully paid back.Per the loan offset rules that went into effect with the 2018 Tax and Job Act: if you leave your job and the loan is current at the time you leave your job but then the loan goes into default because you left your job, you will have until your tax return deadline (including any timely filed extension) to make the loan current by depositing the outstanding balance into an IRA (and thereby avoid the taxes and penalties that would otherwise apply).Please keep in mind the multiple loan rules:Under those rules, the sum of the balances of a participant's outstanding 401k loans under a single 401k plan (using the highest outstanding balance of each loan over the last 12 months) can't exceed 50% or $50,000 whichever is less.

. $1000 deposit required that is refunded on your first successful deal.

Security deposits were more then $5k.

This is a significant potential benefit that can impact everything from security deposits to rent controls to eviction procedures. 

Most lawsuits against landlords involve wrongful eviction, security deposit disputes, and Fair Housing Violations.

After applying the tenant's $1,000 deposit, you are in the hole $4,500.

REI has processes in place so portion of the Security Deposit/ missing rent had to be covered by tenant.