I'm worried that if they break their lease and leave, that leaves me with 3 offices to try to fill quickly, all of which are slightly more expensive than the going rate.I had a thought about offering to this tenant (who is interested in the 3 offices) to invite her to go in on the purchasing of the property, maybe inviting her to be a 10% owner, the thought being that if she has some skin in the game, she would be less likely to cut and run and leave me high and dry. 

Take a photo of it.Call the number you have on file for the tenant and leave a voicemail if they do not answer.

I would use 5% vacancies ($4560) which leaves $6040.

I asked that the seller sign an agreement with me that he will own the eviction process if the tenant doesn't leave and that if the tenant is not out in those 15 (rent free days) the seller, would owe me $75.00 per day for as long as he took to evict the tenant thereafter.My question is, would this agreement hold up if I need to take this to court? 

Tire kickers with no skin in yet bothering residents by viewing apts or stores/offices is annoying and detrimental to our business. 

man, these clickbait titles, tho... that blanket statement doesn't work every time, you are correct. i ran some numbers on a home with a purchase price of $145k (mls, so the price is obv high(er)) that needed about $35k in repairs to make it nice for an arv of $225k (conservative). profit came out to be about $15k (after closing, carrying, etc.). roughly 20% return on cash outlays (dp, cc, repairs). rent would've been about $1700/mo on this one. refing it @75% would leave me 20k in the deal with about $200/mo CF.

If you sell you will have $100000 cash to invest.  5% down on $200000 will leave you around $90000 to invest in income producing properties.

As well as added a shed to protect water heater instead of leaving water heaters in master closet.

My long term plan is to rent out the house after they leave. 

Problems After closing, and my property manager talking to each one of the tenants, trying to a) see which month to month tenants can sign a longer lease and b) changing the payment method from dropping checks to the office to either paypal or bank deposit, we started having problems with 3 tenants. 1) Doesn't like depositing checks or using paypal, was agressive to property manager and is breaking her contract by leaving on Saturday because she doesn't like the way the new management is running things. 2) Find out that the other tenants pay more money than him for rent and wants to pay the same amount as the others or leave. 3) Also doesn't like the new management and will leave at the end of her lease this month.