We keep the utilities in our name and then get reimbursed.

One was able to rent the property quickly but we keep having issues with extra charges they then have to reimburse me for and I can never get a hold of them; the other has not been able to rent my property for 3 months and they are not proactive at all.

Guest reimbursed us easily through Airbnb's resolution center.

One of the parters could however fund the downpayment and then the partnership could reimburse him after we close.  

Purchase price: $89,900 Cash invested: $34,000 Sale price: $165,000 Fire-damaged property qualified for a new construction loan, so reno costs were 100% reimbursed by the lender.

If someone is going to take time out of their day to check on my investment I feel like I should respect their time with some form of reimbursement.

You will reimburse them at closing for the time of closing up to what they already paid ahead on.I would put a purchase and sale agreement together and have them sign.

Most lender's submit draws of reimbursement of work completed on the scope of work.

Then figure out who is responsible for the bill and seek reimbursement.2) Call your insurance and see its it is covered.

Sure, that broker often pay for those leads and need reimbursement through the split, but once you have your own systems, support and are focusing on your unique niche, those leads quickly become unnecessary to sustain and grow your business.